
Graduates
- Scored 40+ in the IB and 7s in the subjects they teach.
Master IB jargon fast! This cheat sheet translates essential IB terms and acronyms (HL, SL, EE, TOK, CAS, ATL) to quickly boost your confidence.

At first, stepping into the world of the IB DP (International Baccalaureate Diploma Programme) can feel like learning a new language. What’s the difference between an IA and an EA? What on earth are TOK and CAS?
Don't worry, we've got you covered. Keep reading to decode every essential term for navigating the next two years with confidence.
The DP Core lies at the heart of your Diploma and refers to the three foundational components of your DP education - the EE, TOK, and CAS. These are required of all DP students and aim to broaden your educational experience, fostering critical thinking and engagement with your community.
The EE challenges you to become an independent researcher. It's a 4,000-word essay on a topic of your choice. You'll be assigned a supervisor to support your project; however, the responsibility for selecting the topic, conducting the research, and producing the essay ultimately rests with you. This is a chance to prepare for university-level writing and research. It's marked externally by an official IB examiner.
TOK is the theory of knowledge. It pushes you to think about how you know what you know. This is a philosophical course that explores the nature of knowledge itself, challenging you to critically reflect on the ways knowledge is produced and accepted across various subject areas and global cultures. TOK is assessed through an exhibition and a 1,600-word essay.
CAS focuses on activities outside the classroom to develop attributes of the IB Learner Profile. As part of your CAS course, you complete a collaborative project and a portfolio that documents your engagement with creative pursuits, physical activity, and community service over 18 months. Although you will not be given a grade for CAS, completion is a requirement for earning your Diploma, and you'll meet regularly with your CAS CAS coordinator to stay on track.
In the DP, you choose six subjects to study for two years. Each subject can be studied at either Standard Level or Higher Level. Your choice of subjects and their level is a crucial decision for managing your workload and meeting university requirements.
The IB assesses your work as a mix of coursework and final exams. Knowing the difference is key to planning your study schedule.
| Term | What It Really Means |
|---|---|
| IA (Internal Assessment) | Coursework marked by your own teacher but moderated by the IB. This includes things like science lab reports, math explorations, history essays, and oral assessments in your language courses. It typically makes up about 20% of your final grade in a subject. |
| EA (External Assessment) | These are the final exams you take in May of your second year. They are marked by an external IB examiner who doesn't know you. This makes up the bulk of your grade, usually around 80%. |
| PG (Predicted Grade) | The grade your teacher expects you to get in the final exams based on your performance in class and assessments. These are hugely important for your university applications. |
| Command Terms | The specific instruction words used in exam questions, like "Analyse", "Evaluate", or "Describe". Understanding exactly what each command term asks you to do is one of the most important skills for scoring high marks. |
The IB isn't just about subjects and exams; it's a whole educational philosophy designed to shape how you learn and see the world.

Master your IB exams by understanding key command terms. Our expert guide provides a complete list of definitions for terms like 'analyze', 'discuss', and 'evaluate'.

IB Jargon Demystified for Parents: Translate TOK, HL, SL, IA, and Predicted Grades to easily understand school communications.

Mastering IB Exam Command Terms is key to high marks. Understand how examiners think with expert revision tips and examples for "Compare," "Describe," "Explain," and "Evaluate."

Understand the IB Diploma Programme curriculum, subjects, and core elements (CAS, TOK, EE) with this expert guide. Learn how IB assessments and grading work.

Understand the International Baccalaureate (IB) program: its diploma structure, core components (Extended Essay, CAS, TOK), curriculum, and benefits for university success.

A complete guide to the IB Diploma Programme. Understand its core components (TOK, EE, CAS), subject groups, and grading system. Learn why the IB offers outstanding preparation for university.

Understand IB TOK Basics: Learn the core concepts of Theory of Knowledge, including the 8 Ways of Knowing and Areas of Knowledge, with expert tips for success in the IB.

What is CAS in the IB Diploma Programme? Get a complete overview of Creativity, Activity, Service, the three essential core elements all students must complete.
600+ handpicked tutors from across the world with the best background and experience.



We are IB experts committed to achieving your academic goals.