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International Baccalaureate (IB)

IB students around the globe fear writing the Extended Essay, but it doesn't have to be a source of stress! In this article, I'll get you excited about writing your Extended Essay and provide you with the resources you need to get an A on it.

If you're reading this article, I'm going to assume you're an IB student getting ready to write your Extended Essay. If you're looking at this as a potential future IB student, I recommend reading our introductory IB articles first, including our guide to what the IB program is and our full coverage of the IB curriculum .

IB Extended Essay: Why Should You Trust My Advice?

I myself am a recipient of an IB Diploma, and I happened to receive an A on my IB Extended Essay. Don't believe me? The proof is in the IBO pudding:

If you're confused by what this report means, EE is short for Extended Essay , and English A1 is the subject that my Extended Essay topic coordinated with. In layman's terms, my IB Diploma was graded in May 2010, I wrote my Extended Essay in the English A1 category, and I received an A grade on it.

What Is the Extended Essay in the IB Diploma Programme?

The IB Extended Essay, or EE , is a mini-thesis you write under the supervision of an IB advisor (an IB teacher at your school), which counts toward your IB Diploma (learn more about the major IB Diploma requirements in our guide) . I will explain exactly how the EE affects your Diploma later in this article.

For the Extended Essay, you will choose a research question as a topic, conduct the research independently, then write an essay on your findings . The essay itself is a long one—although there's a cap of 4,000 words, most successful essays get very close to this limit.

Keep in mind that the IB requires this essay to be a "formal piece of academic writing," meaning you'll have to do outside research and cite additional sources.

The IB Extended Essay must include the following:

• A title page
• Contents page
• Introduction
• Body of the essay
• References and bibliography

Additionally, your research topic must fall into one of the six approved DP categories , or IB subject groups, which are as follows:

• Group 1: Studies in Language and Literature
• Group 2: Language Acquisition
• Group 3: Individuals and Societies
• Group 4: Sciences
• Group 5: Mathematics
• Group 6: The Arts

Once you figure out your category and have identified a potential research topic, it's time to pick your advisor, who is normally an IB teacher at your school (though you can also find one online ). This person will help direct your research, and they'll conduct the reflection sessions you'll have to do as part of your Extended Essay.

As of 2018, the IB requires a "reflection process" as part of your EE supervision process. To fulfill this requirement, you have to meet at least three times with your supervisor in what the IB calls "reflection sessions." These meetings are not only mandatory but are also part of the formal assessment of the EE and your research methods.

According to the IB, the purpose of these meetings is to "provide an opportunity for students to reflect on their engagement with the research process." Basically, these meetings give your supervisor the opportunity to offer feedback, push you to think differently, and encourage you to evaluate your research process.

The final reflection session is called the viva voce, and it's a short 10- to 15-minute interview between you and your advisor. This happens at the very end of the EE process, and it's designed to help your advisor write their report, which factors into your EE grade.

Here are the topics covered in your viva voce :

• A check on plagiarism and malpractice
• Your reflection on your project's successes and difficulties
• Your reflection on what you've learned during the EE process

Your completed Extended Essay, along with your supervisor's report, will then be sent to the IB to be graded. We'll cover the assessment criteria in just a moment.

We'll help you learn how to have those "lightbulb" moments...even on test day!  

What Should You Write About in Your IB Extended Essay?

You can technically write about anything, so long as it falls within one of the approved categories listed above.

It's best to choose a topic that matches one of the IB courses , (such as Theatre, Film, Spanish, French, Math, Biology, etc.), which shouldn't be difficult because there are so many class subjects.

Here is a range of sample topics with the attached extended essay:

• Biology: The Effect of Age and Gender on the Photoreceptor Cells in the Human Retina
• Chemistry: How Does Reflux Time Affect the Yield and Purity of Ethyl Aminobenzoate (Benzocaine), and How Effective is Recrystallisation as a Purification Technique for This Compound?
• English: An Exploration of Jane Austen's Use of the Outdoors in Emma
• Geography: The Effect of Location on the Educational Attainment of Indigenous Secondary Students in Queensland, Australia
• Math: Alhazen's Billiard Problem
• Visual Arts: Can Luc Tuymans Be Classified as a Political Painter?

You can see from how varied the topics are that you have a lot of freedom when it comes to picking a topic . So how do you pick when the options are limitless?

How to Write a Stellar IB Extended Essay: 6 Essential Tips

Below are six key tips to keep in mind as you work on your Extended Essay for the IB DP. Follow these and you're sure to get an A!

#1: Write About Something You Enjoy

You can't expect to write a compelling essay if you're not a fan of the topic on which you're writing. For example, I just love British theatre and ended up writing my Extended Essay on a revolution in post-WWII British theatre. (Yes, I'm definitely a #TheatreNerd.)

I really encourage anyone who pursues an IB Diploma to take the Extended Essay seriously. I was fortunate enough to receive a full-tuition merit scholarship to USC's School of Dramatic Arts program. In my interview for the scholarship, I spoke passionately about my Extended Essay; thus, I genuinely think my Extended Essay helped me get my scholarship.

But how do you find a topic you're passionate about? Start by thinking about which classes you enjoy the most and why . Do you like math classes because you like to solve problems? Or do you enjoy English because you like to analyze literary texts?

Keep in mind that there's no right or wrong answer when it comes to choosing your Extended Essay topic. You're not more likely to get high marks because you're writing about science, just like you're not doomed to failure because you've chosen to tackle the social sciences. The quality of what you produce—not the field you choose to research within—will determine your grade.

Once you've figured out your category, you should brainstorm more specific topics by putting pen to paper . What was your favorite chapter you learned in that class? Was it astrophysics or mechanics? What did you like about that specific chapter? Is there something you want to learn more about? I recommend spending a few hours on this type of brainstorming.

One last note: if you're truly stumped on what to research, pick a topic that will help you in your future major or career . That way you can use your Extended Essay as a talking point in your college essays (and it will prepare you for your studies to come too!).

#2: Select a Topic That Is Neither Too Broad nor Too Narrow

There's a fine line between broad and narrow. You need to write about something specific, but not so specific that you can't write 4,000 words on it.

You can't write about WWII because that would be a book's worth of material. You also don't want to write about what type of soup prisoners of war received behind enemy lines, because you probably won’t be able to come up with 4,000 words of material about it. However, you could possibly write about how the conditions in German POW camps—and the rations provided—were directly affected by the Nazis' successes and failures on the front, including the use of captured factories and prison labor in Eastern Europe to increase production. WWII military history might be a little overdone, but you get my point.

If you're really stuck trying to pinpoint a not-too-broad-or-too-narrow topic, I suggest trying to brainstorm a topic that uses a comparison. Once you begin looking through the list of sample essays below, you'll notice that many use comparisons to formulate their main arguments.

I also used a comparison in my EE, contrasting Harold Pinter's Party Time with John Osborne's Look Back in Anger in order to show a transition in British theatre. Topics with comparisons of two to three plays, books, and so on tend to be the sweet spot. You can analyze each item and then compare them with one another after doing some in-depth analysis of each individually. The ways these items compare and contrast will end up forming the thesis of your essay!

When choosing a comparative topic, the key is that the comparison should be significant. I compared two plays to illustrate the transition in British theatre, but you could compare the ways different regional dialects affect people's job prospects or how different temperatures may or may not affect the mating patterns of lightning bugs. The point here is that comparisons not only help you limit your topic, but they also help you build your argument.

Comparisons are not the only way to get a grade-A EE, though. If after brainstorming, you pick a non-comparison-based topic and are still unsure whether your topic is too broad or narrow, spend about 30 minutes doing some basic research and see how much material is out there.

If there are more than 1,000 books, articles, or documentaries out there on that exact topic, it may be too broad. But if there are only two books that have any connection to your topic, it may be too narrow. If you're still unsure, ask your advisor—it's what they're there for! Speaking of advisors...

Don't get stuck with a narrow topic!

#3: Choose an Advisor Who Is Familiar With Your Topic

If you're not certain of who you would like to be your advisor, create a list of your top three choices. Next, write down the pros and cons of each possibility (I know this sounds tedious, but it really helps!).

For example, Mr. Green is my favorite teacher and we get along really well, but he teaches English. For my EE, I want to conduct an experiment that compares the efficiency of American electric cars with foreign electric cars.

I had Ms. White a year ago. She teaches physics and enjoyed having me in her class. Unlike Mr. Green, Ms. White could help me design my experiment.

Based on my topic and what I need from my advisor, Ms. White would be a better fit for me than would Mr. Green (even though I like him a lot).

The moral of my story is this: do not just ask your favorite teacher to be your advisor . They might be a hindrance to you if they teach another subject. For example, I would not recommend asking your biology teacher to guide you in writing an English literature-based EE.

There can, of course, be exceptions to this rule. If you have a teacher who's passionate and knowledgeable about your topic (as my English teacher was about my theatre topic), you could ask that instructor. Consider all your options before you do this. There was no theatre teacher at my high school, so I couldn't find a theatre-specific advisor, but I chose the next best thing.

Before you approach a teacher to serve as your advisor, check with your high school to see what requirements they have for this process. Some IB high schools require your IB Extended Essay advisor to sign an Agreement Form , for instance.

Make sure that you ask your IB coordinator whether there is any required paperwork to fill out. If your school needs a specific form signed, bring it with you when you ask your teacher to be your EE advisor.

#4: Pick an Advisor Who Will Push You to Be Your Best

Some teachers might just take on students because they have to and aren't very passionate about reading drafts, only giving you minimal feedback. Choose a teacher who will take the time to read several drafts of your essay and give you extensive notes. I would not have gotten my A without being pushed to make my Extended Essay draft better.

Ask a teacher that you have experience with through class or an extracurricular activity. Do not ask a teacher that you have absolutely no connection to. If a teacher already knows you, that means they already know your strengths and weaknesses, so they know what to look for, where you need to improve, and how to encourage your best work.

Also, don't forget that your supervisor's assessment is part of your overall EE score . If you're meeting with someone who pushes you to do better—and you actually take their advice—they'll have more impressive things to say about you than a supervisor who doesn't know you well and isn't heavily involved in your research process.

Be aware that the IB only allows advisors to make suggestions and give constructive criticism. Your teacher cannot actually help you write your EE. The IB recommends that the supervisor spends approximately two to three hours in total with the candidate discussing the EE.

#5: Make Sure Your Essay Has a Clear Structure and Flow

The IB likes structure. Your EE needs a clear introduction (which should be one to two double-spaced pages), research question/focus (i.e., what you're investigating), a body, and a conclusion (about one double-spaced page). An essay with unclear organization will be graded poorly.

The body of your EE should make up the bulk of the essay. It should be about eight to 18 pages long (again, depending on your topic). Your body can be split into multiple parts. For example, if you were doing a comparison, you might have one third of your body as Novel A Analysis, another third as Novel B Analysis, and the final third as your comparison of Novels A and B.

If you're conducting an experiment or analyzing data, such as in this EE , your EE body should have a clear structure that aligns with the scientific method ; you should state the research question, discuss your method, present the data, analyze the data, explain any uncertainties, and draw a conclusion and/or evaluate the success of the experiment.

#6: Start Writing Sooner Rather Than Later!

You will not be able to crank out a 4,000-word essay in just a week and get an A on it. You'll be reading many, many articles (and, depending on your topic, possibly books and plays as well!). As such, it's imperative that you start your research as soon as possible.

Each school has a slightly different deadline for the Extended Essay. Some schools want them as soon as November of your senior year; others will take them as late as February. Your school will tell you what your deadline is. If they haven't mentioned it by February of your junior year, ask your IB coordinator about it.

Some high schools will provide you with a timeline of when you need to come up with a topic, when you need to meet with your advisor, and when certain drafts are due. Not all schools do this. Ask your IB coordinator if you are unsure whether you are on a specific timeline.

Below is my recommended EE timeline. While it's earlier than most schools, it'll save you a ton of heartache (trust me, I remember how hard this process was!):

• January/February of Junior Year: Come up with your final research topic (or at least your top three options).
• February of Junior Year: Approach a teacher about being your EE advisor. If they decline, keep asking others until you find one. See my notes above on how to pick an EE advisor.
• April/May of Junior Year: Submit an outline of your EE and a bibliography of potential research sources (I recommend at least seven to 10) to your EE advisor. Meet with your EE advisor to discuss your outline.
• Summer Between Junior and Senior Year: Complete your first full draft over the summer between your junior and senior year. I know, I know—no one wants to work during the summer, but trust me—this will save you so much stress come fall when you are busy with college applications and other internal assessments for your IB classes. You will want to have this first full draft done because you will want to complete a couple of draft cycles as you likely won't be able to get everything you want to say into 4,000 articulate words on the first attempt. Try to get this first draft into the best possible shape so you don't have to work on too many revisions during the school year on top of your homework, college applications, and extracurriculars.
• August/September of Senior Year: Turn in your first draft of your EE to your advisor and receive feedback. Work on incorporating their feedback into your essay. If they have a lot of suggestions for improvement, ask if they will read one more draft before the final draft.
• September/October of Senior Year: Submit the second draft of your EE to your advisor (if necessary) and look at their feedback. Work on creating the best possible final draft.
• November-February of Senior Year: Schedule your viva voce. Submit two copies of your final draft to your school to be sent off to the IB. You likely will not get your grade until after you graduate.

Remember that in the middle of these milestones, you'll need to schedule two other reflection sessions with your advisor . (Your teachers will actually take notes on these sessions on a form like this one , which then gets submitted to the IB.)

I recommend doing them when you get feedback on your drafts, but these meetings will ultimately be up to your supervisor. Just don't forget to do them!

The early bird DOES get the worm!

How Is the IB Extended Essay Graded?

Extended Essays are graded by examiners appointed by the IB on a scale of 0 to 34 . You'll be graded on five criteria, each with its own set of points. You can learn more about how EE scoring works by reading the IB guide to extended essays .

• Criterion A: Focus and Method (6 points maximum)
• Criterion B: Knowledge and Understanding (6 points maximum)
• Criterion C: Critical Thinking (12 points maximum)
• Criterion D: Presentation (4 points maximum)
• Criterion E: Engagement (6 points maximum)

How well you do on each of these criteria will determine the final letter grade you get for your EE. You must earn at least a D to be eligible to receive your IB Diploma.

Although each criterion has a point value, the IB explicitly states that graders are not converting point totals into grades; instead, they're using qualitative grade descriptors to determine the final grade of your Extended Essay . Grade descriptors are on pages 102-103 of this document .

Here's a rough estimate of how these different point values translate to letter grades based on previous scoring methods for the EE. This is just an estimate —you should read and understand the grade descriptors so you know exactly what the scorers are looking for.

Here is the breakdown of EE scores (from the May 2021 bulletin):

How Does the Extended Essay Grade Affect Your IB Diploma?

The Extended Essay grade is combined with your TOK (Theory of Knowledge) grade to determine how many points you get toward your IB Diploma.

To learn about Theory of Knowledge or how many points you need to receive an IB Diploma, read our complete guide to the IB program and our guide to the IB Diploma requirements .

This diagram shows how the two scores are combined to determine how many points you receive for your IB diploma (3 being the most, 0 being the least). In order to get your IB Diploma, you have to earn 24 points across both categories (the TOK and EE). The highest score anyone can earn is 45 points.

Let's say you get an A on your EE and a B on TOK. You will get 3 points toward your Diploma. As of 2014, a student who scores an E on either the extended essay or TOK essay will not be eligible to receive an IB Diploma .

Prior to the class of 2010, a Diploma candidate could receive a failing grade in either the Extended Essay or Theory of Knowledge and still be awarded a Diploma, but this is no longer true.

Figuring out how you're assessed can be a little tricky. Luckily, the IB breaks everything down here in this document . (The assessment information begins on page 219.)

40+ Sample Extended Essays for the IB Diploma Programme

In case you want a little more guidance on how to get an A on your EE, here are over 40 excellent (grade A) sample extended essays for your reading pleasure. Essays are grouped by IB subject.

• Business Management 1
• Chemistry 1
• Chemistry 2
• Chemistry 3
• Chemistry 4
• Chemistry 5
• Chemistry 6
• Chemistry 7
• Computer Science 1
• Economics 1
• Design Technology 1
• Design Technology 2
• Environmental Systems and Societies 1
• Geography 1
• Geography 2
• Geography 3
• Geography 4
• Geography 5
• Geography 6
• Literature and Performance 1
• Mathematics 1
• Mathematics 2
• Mathematics 3
• Mathematics 4
• Mathematics 5
• Philosophy 1
• Philosophy 2
• Philosophy 3
• Philosophy 4
• Philosophy 5
• Psychology 1
• Psychology 2
• Psychology 3
• Psychology 4
• Psychology 5
• Social and Cultural Anthropology 1
• Social and Cultural Anthropology 2
• Social and Cultural Anthropology 3
• Sports, Exercise and Health Science 1
• Sports, Exercise and Health Science 2
• Visual Arts 1
• Visual Arts 2
• Visual Arts 3
• Visual Arts 4
• Visual Arts 5
• World Religion 1
• World Religion 2
• World Religion 3

What's Next?

Trying to figure out what extracurriculars you should do? Learn more about participating in the Science Olympiad , starting a club , doing volunteer work , and joining Student Government .

Studying for the SAT? Check out our expert study guide to the SAT . Taking the SAT in a month or so? Learn how to cram effectively for this important test .

Not sure where you want to go to college? Read our guide to finding your target school . Also, determine your target SAT score or target ACT score .

As an SAT/ACT tutor, Dora has guided many students to test prep success. She loves watching students succeed and is committed to helping you get there. Dora received a full-tuition merit based scholarship to University of Southern California. She graduated magna cum laude and scored in the 99th percentile on the ACT. She is also passionate about acting, writing, and photography.

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Biology Extended Essay: The Complete Guide for IB Students

by  Antony W

March 13, 2023

Biology Extended Essay is an assignment that requires you to explore biological issue relevant to you and your environment.

Your focus should be on a particular biological emphasis within a broader context of scientific investigation. Given that the focus is on a biological system, you’ll have to make an analytical argument as you write the essay.

In this guide, you’ll learn exactly what you need to know about the IB Biology Extended Essay . Our goal with this lesson is to give you the most important information about the subject so that you can get the assignment done right.

What is Biology in an IB Extended Essay?

Biology in IB Extended Essay is the examination of living organisms and their life processes. The assignment integrates biological theories and examines the nature of the subject.

While you can approach a Biology EE from varying viewpoints, the treatment of the material used in your investigation must be 100% biological.

IB Biology Extended Essay Topics

The topic you choose to explore in your IB Biology Extended Essay shouldn’t be too broad or too narrow. Make sure you choose a focused topic that’s easy to investigate and easy to explain.

Your teacher expects you to explain how you arrived at your research question, and the best way to do that is to outline the aspects you wish to consider in the essay.

You may also have to formulate one or more hypothesis based on the research question.

The EE guide on the subject recommends that you choose your topics carefully, making sure you refrain from inappropriate topics such as those that are likely to inflict pain, involve the use of dangerous substances, or linked to safety concern.

You should avoid topics whose outcome are either obvious or already well known and documented in textbooks.

Doing Research for Your IB Biology Extended Essay

You will need to do primary and secondary research for your Biology Extended Essay.

1. Primary Research

For primary research, you can collect data from fieldwork, surveys, biological drawings, and biological observations.

If you’ve picked topic that requires practical work, you may have to conduct multiple, extensive fieldwork or do lab tests. In such a case, you will have to provide a detailed explanation of the experimental research procedures sued.

2. Secondary Research

When it comes to secondary research, you get data or information from literature.

Some students restate the information they collect from secondary sources, but doing so often adds little or no value to a Biology Extended Essay.

Therefore, the right approach is to analyze the data or information in an original way to add a new dimension and value to your research and to the essay at large.

Whether you do primary research, secondary research, or a combination of both, you need to make sure you have access to enough data or information to answer your research question.

How Do You Write an IB Biology Extended Essay?

The first step to writing a comprehensive, 4,000-word essay in Biology EE is to use the right scientific techniques to analyze the data you collect during research.

You then have to present your argument or evaluation based on the analysis you’ve completed.

You can include graphs, tables, and diagrams, and make sure you point out their significance in the essay so they’re easy to understand.

As with any other EE, your Biology essay should have a good structure and demonstrate a logical progression. Feel free to use headings and subheadings in the essay because it imposes a concise structure.

Your evaluation of the research questions should demonstrate that you not only understand the results from your experiments but also can explain their significance in a wider academic context.

Since you aren’t sure about what to expect from biological experiments, you may have to account for anomalies or unexpected results in your investigation.

In such a case, you have to provide explanations for the expected outcome and give an alternative explanation for such findings.

The subject also allows you to propose slight or major changes to the hypothesis presented in the essay, in which case you will have to suggest relevant approaches to testing the new changes.

Evaluation of Your Biology EE

Writing your EE in Biology also requires that you undertake a critical evaluation of the work that you have already done.

The evaluation helps you to identify and explain the limitation of your research by a number of factors including the reliability and validity of statistics, the precision of experimenting equipment and the reliability of sources.

You also need to consider biological limitations of your research. Such limitations are likely to arise from the inability to generalize based on a single form of an organism or problems of control and repeatability when using living organisms in your research.

Biology Internal Assessment vs Biology Extended Essay

It’s important to keep in mind that a Biology Extended Essay is not an extension of the Internal Assessment in the same subject. There are a few differences that set the two assignments apart, and it’s important to know them before you start working on the essay.

Get Extended Essay Writing Help

Do you need help with your Extended Essay in Biology? Our team of IB experts is here to help you write the 4,000-word essay, even if it’s on a complex topic. You can click here to learn more.

About the author 

Antony W is a professional writer and coach at Help for Assessment. He spends countless hours every day researching and writing great content filled with expert advice on how to write engaging essays, research papers, and assignments.

IB Biology EE examples

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prior, cooked, kept in oil, fermented in brine and fermented (black garlic)) affect the growth of a non-pathogenic strain of escherichia coli, how is the number of errors made by participants when attempting to distinguish between the temperature of two different water baths influenced by the hours slept within a 24-hour period, how effective is the cone repair technique when treating ebstein’s anomaly in comparison to other treatments, to what extent do bioinformatic tools such as cb dock 2 and chimera help in the analysis of phytochemicals (calotropone, quercetin, thymoquinone) compared to allopathic drugs (gemcitabine, olaparib, fluorouracil) against target receptors of pancreatic cancer (human glutamate oxaloacetate transaminase 1 (got1), threonine-protein kinase bub1, and peroxisome proliferator-activated receptor gamma), to what extent does the abundance of hormosira banksii influence biodiversity at different positions on the intertidal rocky shore, how does the duration of exposure time to ultraviolet light affect the growth of saccharomyces cerevisiae, ¿cómo los cambios en la luminosidad con niveles de 0, 2 500 y 5 000 lux, en focos de 25 y 50 watts respectivamente, afectan a la fijación de dióxido de carbono (co2) en la sansevieria trifasciata zeylanica biología nm, estudio sobre el efecto de la crema dental utilizada para el cepillado de los dientes como inhibidor en la actividad enzimática de la alfa amilasa salival, how does the pollution of oestrogens into freshwater systems affect the biological processes of fathead minnows, knowing that fingerprints are always different, but the core is identical, to what extent is it possible to see other similarities between the minutiae of close family members, to what extent does irrigation with carbonated water affect the ferric ion (fe3+) nutrient content of brassica oleracea ‘black tuscany’ microgreens, ¿cómo se estudia el angioedema hereditario, su diagnóstico, tratamiento, síntomas y etiología en humanos, how can the frameshift mutation caused by a deletion that affects the human body's melanocortin receptor gene (mcr) and leptin receptor gene (lepr) induce monogenetic obesity, to what extent do various concentrations of piper betle extract (1%, 2%, 3%, 4%, 5%) affect the enzymatic activity of the digestive enzyme amylase, protease and lipase on their substrates (starch, casein and milk) in the the process of digestion and the estimation of vitamin c concentration in piper betle, to what extent does high intensity interval training (hiit) effect the maximum oxygen uptake (vo2max) in sedentary populations, investigating the effects of oil spillages on plants, what effect do differing concentrations of the growth hormone gibberellic acid, have on the growth and mortality rates of pulses, common beans (phaseolus vulgaris l.) and common peas (pisum sativum l. (partim)), how do different concentrations of two cytokinin hormones: kinetin (0.5, 1 and 1.5 mg/l) and 6-benzylaminopurine (1.5, 2 and 2.5 mg / l) affect the growth of lactuca sativa, measured by height, number of leaves and dry mass, separately and combined over 5 weeks, to what extent is frequent consumption of ultra processed food related to prevalence of overweight and obesity among high school and college students, in poland and in thailand, to what extent does the efficiency of lactase enzyme found in different types and brands of dietary supplements (vitaplus innolact lactase dietary supplement film-coated tablet, millandjoy lactase enzyme chewable tablets, lactase comfort drops, dr. chen soft capsule, sanct bernhard lactase enzyme capsule) differ if the prescribed dosage used, measured as the amount of glucose produced after being treated with different supplements in a given time period (30sec, 60sec, 90sec, 120sec, 150sec), the impact of ph on chlorella vulgaris, how do different concentrations of salicylic acid (1mm and 1m) affect growth of radishes (raphanus sativus), under drought, osmotic and cold stress, as well as normal conditions, a study on the effect of indole acetic acid, growth hormone, on the groth of crop plats, rice (oryza sativa l) and wheat (triticum species), to what extent does animal rennetassist lactic acid bacteria in the fermentation of milk during the production of cheese curds, how do different nitrogen-phosphorus-potassium (npk) ratios (1:1:1, 2:1:1, 2:2:1 and water) in aqueous fertilisers affect growth (as measured through a mitotic index) of the onion (allium cepa), over a 5- week period, in a hydroponics set up, to what extent does varying concentrations of the hormone progesterone promote the short term growth of egeria densa, “is the cone repair a suitable approach for severe forms of ebstein anomaly”.

Extended Essay: Structure of the Extended Essay

• Before You Start
• Business Management
• Language and Literature
• Visual Arts
• World Studies
• Developing a Research Question
• Structure of the Extended Essay
• Writing the Essay
• Citations/Sources/Academic Honesty
• Timelines and Materials
• Example Research Questions
• Supervisors

Elements To Be Included

• Table of Contents
• Introduction
• Body of the essay
• References/Bibliography

Not sure yet but something should be here

The Extended Essay Step by Step Guide 5: Structure and Planning When it comes to writing a brilliant first draft of your Extended Essay, or any essay, I fully believe that a solid structure is one of the surest guarantees of success there is. It's the skeleton of the essay that makes it into a fully formed being instead of a pile of jelly.

What's the Difference Between the Topic, Title, and Research Question?

• The  topic  of the extended essay is the subject, issue or theme that you are investigating within a specific DP subject or world studies area of study. The topic, which develops during the initial thinking about the EE, should later be reflected in the wording of the title.
• be short, descriptive and succinct
• not be phrased as a question
• use key words that connect with the topic and the DP subject or world studies area of study
• attract the interest of the reader.
• be clear and focused
• provide a path through which you can undertake achievable research
• use key words that connect with the topic, the title, and the DP subject or world studies area of study
• support the development of an argument.

Presentation Requirements

Title Page (i tems that should be included in the title page):

• Title of the essay
• Research question
• Subject for which the essay is registered (and category if necessary)

Times New Roman 12 pt. font 

Double spaced

Pages numbered after the title page

Bibliography/work cited

Table of contents

No more than 4000 words

Assessment of the EE - Advice for Students

Use this list to help you think about the assessment criteria and whether you have addressed the expectations within your essay. You do not need to address all of the questions posed, but they do provide some guidance in terms of what to consider.

Criterion A:  Focus and Method

What It Means: This criterion focuses on the topic, the research question and the methodology. It assesses the explanation of the focus of the research (this includes the topic and the research question), how the research will be undertaken, and how the focus is maintained throughout the essay.

Questions to ask:

• Does this essay meet the requirements for the subject for which you are registering it? • Is your research question stated as a question?

• Have you explained how your research question relates to the subject that you selected for the extended essay?

• Have you given an insight into why your area of study is important?

• Is your research question feasible within the scope of the task? Could your research question be “answered” or it is too vague?

• Did you refer to your research question throughout the essay (not only in the introduction and conclusion)? • Did you explain why you selected your methodology?

• Are there other possible methods that could be used or applied to answer your research question? How might this change the direction of your research?

• If you stated a particular methodology in the introduction of your essay, or specific sources, have you used them?

• Are there any references listed in the bibliography that were not directly cited in the text?

Criterion B: Knowledge and understanding

What It Means: This criterion assesses the extent to which the research relates to the subject area/discipline used to explore the research question; or in the case of the world studies extended essay, the issue addressed and the two disciplinary perspectives applied; and additionally, the way in which this knowledge and understanding is demonstrated through the use of appropriate terminology and concepts.

• Have you explained how your research question relates to a specific subject you selected for the extended essay?

• Have you used relevant terminology and concepts throughout your essay as they relate to your particular area of research?

• Is it clear that the sources you are using are relevant and appropriate to your research question?

• Do you have a range of sources, or have you only relied on one particular type, for example internet sources?

• Is there a reason why you might not have a range? Is this justified?

Criterion C: Critical Thinking

What It Means: This criterion assesses the extent to which critical thinking skills have been used to analyze and evaluate the research undertaken.

• Have you made links between your results and data collected and your research question?

• If you included data or information that is not directly related to your research question have you explained its importance?

• Are your conclusions supported by your data?

• If you found unexpected information or data have you discussed its importance?

• Have you provided a critical evaluation of the methods you selected?

• Have you considered the reliability of your sources (peer-reviewed journals, internet, and so on)?

• Have you mentioned and evaluated the significance of possible errors that may have occurred in your research?

• Are all your suggestions of errors or improvements relevant?

• Have you evaluated your research question?

• Have you compared your results or findings with any other sources?

• Is there an argument that is clear and easy to follow and directly linked to answering your research question, and which is supported by evidence? Are there other possible methods that could be used or applied to answer your research question? How might this change the direction of your research?

Criterion D: Presentation

What It Means: This criterion assesses the extent to which the presentation follows the standard format expected for academic writing and the extent to which this aids effective communication.

• Have you read and understood the presentation requirements of the extended essay?

• Have you chosen a font that will be easy for examiners to read onscreen?

• Is your essay double-spaced and size 12 font? • Are the title and research question mentioned on the cover page?

• Are all pages numbered?

• Have you prepared a correct table of contents?

• Do the page numbers in the table of contents match the page numbers in the text?

• Is your essay subdivided into correct sub-sections, if this is applicable to the subject?

• Are all figures and tables properly numbered and labelled?

• Does your bibliography contain only the sources cited in the text?

• Did you use the same reference system throughout the essay?

• Does the essay have less than 4,000 words?

• Is all the material presented in the appendices relevant and necessary?

• Have you proofread the text for spelling or grammar errors?

Criterion E: Engagement

What It Means:  This criterion assesses the student’s engagement with their research focus and the research process. It will be applied by the examiner at the end of the assessment of the essay, after considering the student’s RPPF (Reflections on planning and progress form).

• Have you demonstrated your engagement with your research topic and the research process?

• Have you highlighted challenges you faced and how you overcame them?

• Will the examiner get a sense of your intellectual and skills development?

• Will the examiner get a sense of your creativity and intellectual initiative?

• Will the examiner get a sense of how you responded to actions and ideas in the research process?

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What Is An Extended Essay & How to Write It?

Read this article for 5 tips to ace your IB Extended Essay. this article shows IB students how to write an Extended Essay for IB Diploma.

Table of content

Introduction , what is ib extended essay, choosing your mentor, how to select your topic, the structure of ib extended essay, research question, table of contents, methodology, the main body, the conclusion, bibliography, ib extended essay checklist.

Introduce and elaborate topic that you are researching in your EE.

• A crisp description of what you will explore and how you will do so. If you are aiming at a particular firm/industry, discuss the problems and your investigation method.
• To provide context to your question, you must address the situation from where the question is coming.
• State your research question and emphasize the importance of answering that question.
• Please describe how your research is helpful and exciting and how it is valuable to your audience.

This article will reveal helpful information on what your IB Extended Essay (EE) requires. Consider this your IB Extended Essay Checklist, which covers everything you must know about your EE.

Hey! Make sure you listen to Ivy, who will explain what NOT to do on your EE.

These mountains you are carrying, you were only supposed to climb!

Understand that no warrior ever conquered the battlefield with an unhinged mind. We say this because, being past IB students, we have seen and faced what we are about to and have a good knowledge and acquired the ability to differentiate between more enormous beasts and smaller beasts.

IB Extended Essay  is a smaller beast considering that you give it enough time before it becomes more prominent. All you need to do is relax your mind, de-stress and follow a simple procedure explained further in the article. There is no need to panic. Trust us, listen to us, and be like us!

Moving ahead from punny insertions, let us tell you why the IB extended essay can be an easy and exciting mountain to climb:

• Subject of your choice (Good practice to choose from your HLs)
• Independence of choosing a topic  
• Choice of choosing your mentor
• Continuous feedback and support from your chosen mentor.

IB extended essay (IB EE) is another one of the mandatory requirements of the IB Diploma Programme. It is a mini-thesis that you write under the supervision of a mentor/advisor. Your mentor will be an IB teacher from your school. The students must conduct independent research on a topic of their choice, which must be at most the limit of 4000 words. You begin by choosing a research question as a topic that will be further approved by IBO. It is up to you to either do a typical research paper, conduct an experiment/solve a problem-type EE.

I can write too many paragraphs giving you unnecessary information but let’s cut to the chase and admit the heart wants what it wants. You will go with an advisor/mentor with whom you will connect the most. However, suppose your judgment is clouded between the advisor you want to choose solely because you click with them better and the mentor who is knowledgeable about your chosen topic and can help you improve your research work. In that case, the choice is pretty straightforward: listen to your brain. Get rid of your toxic love and make a wise decision to choose a knowledgeable mentor. If you are lucky, the mentor you connect with and the one with ample knowledge about your chosen topic will be the same person. On that note, consider only two things while choosing your advisor:

• An advisor who is familiar with your topic 
• An advisor who will push you to be your best

Before diving into the topic selection and the structure of your IB extended essay, refer to this table to get an insight into the grade breakdown table. This will be helpful in your planning phase.

Moving ahead towards essential aspects of this article. After choosing your mentor, the next step for ‘how to write an EE’ is choosing a topic with the help of your mentor’s input. It is as essential as our  TOK Essay  and  TOK presentation .

Keep the following in mind while selecting your topic:

• Choose a topic that interests you.
• A topic that has enough resources and material.
• Choose a topic that is neither too narrow (so you have enough material) nor too broad (to avoid exceeding the word limit of 4000 words)

Before we dive into the structure, let us make one thing clear, there is a difference between the title and the research question. A title is different from your research question. Your research question is a clear and focused summative statement of your research. For instance, “The Effect of Gender and Age on the photoreceptor cells in the human retina” is a title whereas the following as the examples of research questions:

“Does the efficiency of Rods and cones decrease with age?

“What is the efficiency of L-cone vs M-cone vs S-cone?“

“To what extent are rod cells more efficient than the three cone cells?”

“Does the efficieny of rods and cones differ between genders?”

This will include the following:

• Introduction

Quick Note: The content on this page will not be included in your essay word count.

NO ABSTRACT REQUIRED. The latest IB guide states that an abstract should not be included in EE anymore.

You should split this section into two major areas to cover all the essential aspects.

• Section - 1 Explaining your sources
• Section - 2 Related topics, theories, and arguments that you will use to explore

Quick Note: Ensure that besides giving the readers an insight into the theories, arguments, and resources you plan to use for your research, you also point out the weaknesses and limitations.

Section- 1: Sources

• Describe each of your major sources of primary and secondary research.
• Inform the readers how these sources are helpful.
• To provide the readers with insight into each source's weaknesses or limitations. For example, there may have been room for bias or a limited scope of your research. Or there are other reasons why other data you used could be unreliable or invalid.
• Some useful sources of secondary research are company annual reports, news articles, magazine articles, business textbooks, and encyclopedias.
• Mention any adjustments (at least one) you made to your research as you progressed with your EE.

Section- 2: Related topics, theories, and arguments

• Briefly explain the ideas you will use and why (what are you aiming to support by using these).
• Address weaknesses or limitations of each addressed topic, theory, or related argument.
• Mention any changes made to these as you progressed with your EE.

This part of your essay will be the most elaborate. It will concentrate on research, analysis, discussion, and evaluation.

To maintain the flow of your previous section, we suggest splitting this section into two parts, identical to the previous bifurcation, to showcase your understanding of the IB concepts learned in your business management class and the other addressing the insightful material outside of your course.

Section-1: Related arguments, theories, and topics form your course learning

• Include 4 or 5 of these to help you answer your research question.
• It is suggested that you include at least one financial element. Address your qualitative tools before the quantitative ones.

Section- 2: Beyond your Course

Take up this section as an opportunity for you to educate your reader/evaluator.

• Review several related theories and concepts more extensively than the course does.
• Impress your reader by giving the sense that you know how the particular industry works. Showcase your expertise or knowledge gained through expert opinions in several aspects of your question.
• Please add some analytical insight in this section rather than just descriptive. Be careful to ensure that all of your theories in this section are really helping you answer your research question.
• You can use a graph here, but it must link to the research question.
• Use theories and supportive arguments that apply to your research and are beyond your course (if relevant).

Quick Note: Relate every paragraph to your research question.

This section is self-explanatory. It is time to bind all your areas together.

• It would help if you concentrated on making your EE sections cohesive.
• Please address what you have researched and how it helps answer your research question.
• Keep everything new in your conclusion.
• Shine through by including mini-conclusions to synthesize your essay.
• You can include several evaluative insights as well, if applicable.
• Mention some weaknesses and limitations of your research and their effect on your research. You can even address the inaccuracies these limitations may have caused and state the reason behind them.
• Explain at least one thing that you would have done differently if you were to do it again.

Quick Note: Don’t include a recommendations section in your EE

This section gives the reader an insight into your research resources. It may include:

• Books –textbooks, internet resources, journals, academic papers, competitor interviews, etc.
• Primary Resource (if applicable) –Interview, data (focus group, survey, etc.).

Quick note: The content on this page will not be included in your essay word count.

Take this section as more of an essential formality of showcasing the process of hard work that you have put in.

• Transcripts from your interviews,
• The additional analysis you didn't fit in the body of your EE.
• Any other exciting data which you would like to refer to in the body of your work.

With this, we come to the end of our article on what is an IB extended essay and how to write an extended essay. As we mentioned earlier, it is relatively easy. All you need is dedication, set timelines, and proper research. So, don't worry; no rabbits can pull out your hat today. If you want to score a 36 on 36 your Extended Essay, check out our  Extended Essay Guide , which offers '5 never heard before' tips to help you write a quality essay.

Make an IB Extended Essay Checklist! I cannot emphasize enough on this point. The submission for your EE happens simultaneously when you are expected to take your exams. There will be a million things that you would have to keep track of. There is a high chance of forgetting to make that final edit or perfecting your EE's introduction in the midst of it all. Therefore, an IB Extended Essay Checklist will ensure you do everything. IB Extended Essay Checklist will be your savior during the final submission days.

We want Nail IB to be your virtual companion to hustle through IB. We have many helpful blogs that will help you navigate your way through IB. Apart from our blogs, we offer a "Take A Test' module, which allows IB students to evaluate their level in the IB Program. Make sure to try a  test  and see your strengths and weaknesses. And finally, to ensure you have all the resources you might need to nail IB, we have curated special  student bundles  for your convenience.

IB Resources you will love!

Extended Essay: Sciences: Biology

• Step 1 - Choosing a Subject
• Step 2 - Choosing a Topic
• Step 3 - Draft a Research Question
• Step 4 - Finding Sources
• Step 5 - Evaluating Information
• Step 6 - Bibliography & Citation
• Step 7 - Organizing Information
• The Arts: Visual Arts
• Individuals & Societies: Business Management
• Individuals & Societies: History
• Individuals & Societies: Psychology
• Language Acquisition
• Language and Literature
• Sciences: Biology
• Sciences: Sports, Exercise, and Health Sciences
• Interdisciplinary Papers: World Studies
• Assessment Criteria
• Research Questions
• Investigation

Extended Essay in Biology

Extended Essays in Biology

Choosing a topic

Choosing a Topic

Biology is the science that deals with living organisms and life processes. A biology EE should incorporate biological theory and emphasize why it is relevant today.

The topic must relates specifically to biology. Many topics can be approached from different viewpoints, but for an EE in biology the treatment of the topic must be clearly biological. For example, an EE in an interdisciplinary area such as biochemistry will, if registered under the subject of biology, be judged solely on its biological content.

Disease, for example, could be considered through many different lenses. A biology paper about diseases would focus on their impact on particular organisms or life processes, and not on medical treatment, or the economic effects of the disease on society.

Approaches to research

Primary Research

Essays in biology may be based on data collected by the student through:

Essays that involve lab work, or fieldwork, should include a clear and concise description of the experimental procedure. Students taking an experimental approach must also consult secondary sources.

Secondary Research

Students can base their essays on data or information obtained from literature (secondary studies). However, in this case they should use the data in an original way. Essays that simply restate facts or data taken directly from the sources are of little value.

Biology Sources

Even students doing primary research will still need to reference secondary sources. And students relying entirely on secondary sources will need to find sources not only of written information but also experimental data which they can analyze.

Writing the Essay

An essay in the sciences requires is more than just generating and presenting data. Analysis of the data is also essential. The main body of the essay should consist of an argument or evaluation based on the data or information presented . You can gather your own data through a variety of methods, or rely on secondary data. You should use graphs, tables, or diagrams to point out the significance of your findings.

You should ensure that the main body of the essay is well structured and has an obvious logical progression. You can use numbered and headed paragraphs to impose a clear structure. Your evaluation should show that you understand the the data they have collected and its significance to the world.

In your analysis, you should also describe and explain the limitations imposed on the research by factors such as

• the suitability and reliability of the sources accessed
• accuracy and precision of measuring equipment
• sample size
• validity and reliability of statistics

Students  should also consider biological limitations such as:

• those arising from the problem of repeatability and control when using living material
• the difficulties of generalizing from research based on a single type of organism or environment.

Exceptions for Safety and Academic Honesty

Safety and Ethics in Choosing a Topic

In all cases where human subjects are used as the basis for an investigation, clear evidence of informed consent must be provided in accordance with the IB guidelines.

Some topics may be inadmissible because their means of investigation are unethical. For example, investigations that:

• are based on experiments likely to inflict pain on, or cause stress to, living organisms
• are likely to have a harmful effect on health, eg culturing micro-organisms at or near body temperature (37°C)
• involve access to, or publication of, confidential medical information.

Some topics may be unsuitable because of safety issues. Adequate safety apparatus and qualified supervision is required for experiments involving dangerous substances such as:

• toxic or dangerous chemicals
• carcinogenic substances
• radioactive materials.

Other topics may be unsuitable because the outcome is already well known and documented in standard textbooks.

Assessed Student Work

• The Antimicrobial Effects of Metals Copper, Barium and Silver on the Growth of Bacteria
• Effects of different calcium salts in growth solutions on the growth of the stems of basil (Ocimum basilicum) plants grown hydroponically
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Extended Essay Guide: Criteria, Format, Sample EEs

• Criteria, Format, Sample EEs
• Annotated Bibliographies
• DP Research Process
• Databases & Academic Journals
• Evaluate Sources
• Academic Integrity
• MLA Citation Format
• CSE Citation Format (Science & Math)
• Video Tutorials 2024

The Assessment Crtiteria in Detail!

• Criterion A: Focus and method
• Criterion B: Knowledge and understanding
• Criterion C: Critical Thinking
• Criterion D: Presentation
• Criterion E: Engagement
• EE_How to maximize marks for different subjects?

• Criterion C: Critical thinking

Notes from the IB

RE: Research Question and Title of Extended Essay

Please note the statement below from the EE curriculum manager regarding the need to have both a title and a RQ for all subjects. Previous versions of the EE Guide indicated that the title and the RQ should be the same for History, Business Management and Mathematics. This is no longer the case.  All essays, regardless of the subject, need to have both a RQ and a title.

Hi Kathy, 

To answer your question, I am going to quote directly from a response John Royce provided, on this forum, in October in response to a very similar question: (it was a question about using Spanish sources - hence the mention of Spanish)

It is certainly  permissible to use sources which are not in the language of the essay, but translation into the target language is required , one cannot assume that the reader understands the original language.

It is usual to quote the original as well as presenting the translation.  [Do not put quotation marks around your translation, just around the original]

Umberto Eco argues ("in Mouse or rat?") that direct translation may lose meaning, paraphrase or use of different idioms may be required to get the ideas across. Paul Bellos ("Is that a fish in your ear?") makes a similar argument - direct translation may confound meaning... Direct translation may not be ideal - meaning and understanding are preferred - so, not to worry that your student with her good Spanish cannot present a direct translation.

What  must be made clear is that the translations are those of the student;  these are her understandings. Readers can make of that what they will - and if unsure, are presented with the original - they can seek another translation.  A note in the acknowledgements and/or in the introduction to the effect that all translations are those of the writer is ... essential.

In response to the question about the  Bibliography/Works cited, my preference would be to list the source in its original Thai version, but perhaps with the English in brackets, to help the examiner.

Your bibliography will have the entries in Thai characters first in the document. Any in-text citation to Thai sources will be in (Thai characters [English translation]).

Citation in Thai [English translation]

Works Cited Example:

วงษ์ปัญญา, ธนกร [Wongpunya, Thanakorn]. “โรงงานยาสูบรวยแค่ไหน และเอาเงินไปทำอะไรบ้าง.”  [How rich is the Thailand Tobacco Monopoly and where does the money go?] (candidate translation). The Standard, The Standard, 30 Aug. 2018, thestandard.co/thailand-tobacco-monopoly/.

Format of the Extended Essay

Required Formatting

The extended essay should be written in a clear, correct and formal academic style, appropriate to the subject from which the topic is drawn. Given that the extended essay is a formally written research paper, it should strive to maintain a professional, academic look. 

To help achieve this, the following formatting is  required:

• 12-point, readable font (Calibri or Times New Roman);
• double spacing throughout entire Essay;
• page numbering - top right corner;
• no candidate or school name or supervisor name on the title page or page headers.

Submitting the extended essay in the required format will help set the tone of the essay and will aid readability for on-screen assessment by examiners.

Required S tructure

The structure of the essay is very important. It helps students to organize the argument, making the best use of the evidence collected. 

There are six required elements of the final work to be submitted. More details about each element are given in the  “Presentation”  section. Please note that the order in which these elements are presented here is not necessarily the order in which they should be written. 

Six required elements of the extended essay:

• Contents page
• Introduction
• Body of the essay
• References and bibliography -- if MLA "Works Cited" if CSE "References"

1. Required Title Page  

The title page should include  only  the following information: 

• the title of the essay
• the research question
• the subject the essay is registered in (if it is a language essay also state which category it falls into; if a world studies essay also state the theme and the two subjects utilized) 

The upper limit is 4,000 words for all extended essays. 

2. Required Contents Page

A contents page must be provided at the beginning of the extended essay and all pages should be numbered. Please note that an index page is not required and if included will be treated as if it is not present.

3. Required Introduction

The introduction should tell the reader what to expect in the essay. The introduction should make clear to the reader the focus of the essay, the scope of the research, in particular an indication of the sources to be used, and an insight into the line of argument to be taken. 

While students should have a sense of the direction and key focus of their essay, it is sometimes advisable to finalize the introduction once the body of the essay is complete.

4. Required Body of the Essay  (research, analysis, discussion, and evaluation)

The main task is writing the body of the essay, which should be presented in the form of a reasoned argument. The form of this varies with the subject of the essay but as the argument develops it should be clear to the reader what relevant evidence has been discovered, where/how it has been discovered and how it supports the argument. In some subjects, for example, the sciences, sub-headings within the main body of the essay will help the reader to understand the argument (and will also help the student to keep on track). In structuring their extended essay, students must take into consideration the expected conventions of the subject in which their extended essay is registered. 

Once the main body of the essay is complete, it is possible to finalize the introduction (which tells the reader what to expect) and the conclusion (which says what has been achieved, including notes of any limitations and any questions that have not been resolved). 

Any information that is important to the argument  must not  be included in appendices or footnotes/endnotes. The examiner  will not  read notes or appendices, so an essay that is not complete in itself will be compromised across the assessment criteria.

5. Required Conclusion

The conclusion says what has been achieved, including notes of any limitations and any questions that have not been resolved. While students might draw conclusions throughout the essay based on their findings, it is important that there is a final, summative conclusion at the end. This conclusion(s) must relate to the research question posed.

6.  Required References & Bibliography

Students should use their chosen style of academic referencing as soon as they start writing. That way they are less likely to forget to include a citation. It is also easier than trying to add references at a later stage. For more information on this, refer to the guidelines in the IB document  Effective citing and referencing.

Writing the essay takes time but if students have used their Researcher's reflection space and reflection sessions in a meaningful way they should be well prepared to develop their arguments.

Extended Essay - Examples & Exemplars

• Essays from May 2018 with IB marks and commentaries
• Assessed Student Work & Commentary IB-provided. "Student sample extended essays, corresponding marks and comments from senior examiners are available for the following Diploma Programme disciplines. Please note that in light of not having authentic RPPFs to accompany these essays, they are marked against criteria A – D only, for a total of 28 possible marks. Following the first assessment session in 2018, exemplars will be refreshed with authentic sample material." more... less... Biology English Economics History Studies in language and literature Language acquisition Mathematics Psychology Visual arts World studies extended essay (WSEE)
• Excellenet Extended Essays Concordian GoogleDoc
• EngA1_Othello EE Othello 2018 From inThinking.net Click the link to see the score and evaluation.
• Fifty (50) More Excellent Extended Essays DVD by International Baccalaureate Call Number: HS DVD 808.4 ISBN: 9781906345600 Publication Date: 2011 1 DVD-ROM (1:33 min.)

Past CIS Extended Essays

Available in the library behind the desk are file folders of past Extended Essays by Concordian students and IB EE Exemplars. Feel free to browse the papers which must be kept in the library.

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• Last Updated: May 28, 2024 10:30 AM
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World Studies EE Examples

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Category Archives: Extended Essay

Extended essay frame and word citation tool.

Posted by Stephen

Here’s a document we are using in my Extended Essay group . The intention is that students set it up from day 1, keeping all of their reading and research in a section at the end which will allow them to build their citations database. This section of notes will be deleted before final submission, unless any of the resources they save are worthy of an appendix.

By this point, students have read the examiners’ reports for their subject area EE’s, looked at some excellent examples ( on sale in the IB store ) and have read carefully through the EE guide, noting the subject-specific guidance for each criterion.

At the end of the document is a set of rubrics for self-assessment, which they should refer to on a regular basis. I have set it up so that they can add their own checkboxes above each rubric, listing what is most important for them to achieve.

There is a screencast below the document which gives a very quick introduction to using the Word citation manager.

Check out these great resources from Purdue’s OWL project on APA citation .

What I would love to see

If I could make one request of the IB, it would be that rolled into our programme fees for DP we could have access to university-style academic searches and journals. Wouldn’t it be great if the IB subscribed to the journals and schools could access them through Athens or Springerlink (or something else), to use in EE’s and research?

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Extended Essay Support Site

Essay structure.

In brief there are two kinds of Extended Essays: investigative essays and analytical essays. Investigative essays are more appropriate for maths and sciences. Analytical essays are more appropriate for languages, arts and humanities. Each kind of essay has an appropriate structure to present ideas and arguments. In other words, the Extended Essay is not uncharted territory. Instead think of a ready-made coat rack on which you will hang your research and arguments. Study either the analytical or investigative structure below with your supervisor or candidate and discuss answers to the following questions:

How ready are you to put your research and arguments into this investigative or analytical structure?

If you were to write an outline of your essay, in which order would your write your headings?

Where do you see weaknesses in your argument? In what ways is your methodology effective or ineffective in answering your question? Where do you see a need to do more research?

Investigative essay structure

Analytical essay structure

Have you learned about reasoning in TOK? For your Extended Essay to score well on Criterion C: Critical thinking, you will need to apply inductive and deductive reasoning. What does this have to do with the structure of your essay? Everything! An argument is 'valid' when the truth of its conclusion rests on the truth of its premises. Premise 1 should come before Premise 2. Premise 2 should come before Premise 3, and so on and so forth. In other words: The order in which you make your points and present your evidence determines the strength of your arguments.

Extended Essay

Ee resources.

Useful links:

IBO Introduction to the Extended Essay:  https://www.ibo.org/programmes/diploma-programme/curriculum/extended-essay/

Alexander’s article on choosing an EE topic:  https://www.eliteib.co.uk/resource/selecting-an-extended-essay-topic-alexander-zouev/

Extended Essay marking criteria:

Effective Citing and Referencing:

Click to access effective-citing-and-referencing-en.pdf

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The advancement and application of the single-cell transcriptome in biological and medical research.

Simple Summary

1. introduction, 2. development of the single cell transcriptome.

Click here to enlarge figure

3. Single Cell Isolation and Transcriptome Analysis Process

3.1. single cell isolation, 3.2. data quality control, 3.3. construction of seurat objects and information extraction, 3.4. cluster analysis, 3.5. annotation of cellular taxa, 3.5.1. automatic annotation, 3.5.2. manual annotation, 3.5.3. validation, 3.6. calculation of cell ratios, 3.7. analysis of cellular interactions, 3.8. gene differential expression analysis, 3.9. pseudotime analysis, 4. integrated analysis of scrna-seq and multi-omics, 4.1. bulk rna-seq, 4.2. single-cell dna-seq, 4.3. single-cell ribo-seq, 4.4. single-cell epigenomics, 4.5. spatial transcriptomics, 4.6. 16s rrna and metagenome, 4.7. proteomics and single-cell proteomics, 4.8. metabolomics and spatial metabolomics, 5. application of single-cell transcriptome sequencing technology, 5.1. large-scale cell mapping construction, 5.2. oncology research, 5.3. neuroscience research, 5.4. developmental biology, 5.5. cell subpopulation refinement and rare cell type identification, 5.6. stem cells research, 5.7. applications in microbiology, 5.8. drug resistance research, 5.9. integration and utilization of single-cell datasets, 6. summary and prospect, author contributions, institutional review board statement, informed consent statement, data availability statement, acknowledgments, conflicts of interest.

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Share and Cite

Huang, K.; Xu, Y.; Feng, T.; Lan, H.; Ling, F.; Xiang, H.; Liu, Q. The Advancement and Application of the Single-Cell Transcriptome in Biological and Medical Research. Biology 2024 , 13 , 451. https://doi.org/10.3390/biology13060451

Huang K, Xu Y, Feng T, Lan H, Ling F, Xiang H, Liu Q. The Advancement and Application of the Single-Cell Transcriptome in Biological and Medical Research. Biology . 2024; 13(6):451. https://doi.org/10.3390/biology13060451

Huang, Kongwei, Yixue Xu, Tong Feng, Hong Lan, Fei Ling, Hai Xiang, and Qingyou Liu. 2024. "The Advancement and Application of the Single-Cell Transcriptome in Biological and Medical Research" Biology 13, no. 6: 451. https://doi.org/10.3390/biology13060451

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