Environmental Systems and Societies (ESS)
Comprehensive notes, flashcards, and exam practice covering ecosystems, biodiversity, climate change, and all 8 ESS units.
IB Diploma Programme: Subjects, Grading, Structure & Study Resources
Everything you need to know about the IB — subjects, grading, structure, and free study tools to help you achieve top marks.
What is the IB Diploma Programme?
The International Baccalaureate (IB) Diploma Programme is a rigorous, internationally recognised pre-university qualification for students aged 16–19. It was founded in 1968 in Geneva, Switzerland, and is now taught at over 5,700 schools in more than 150 countries.
The IB Diploma is designed to develop students who are knowledgeable, principled, and open-minded — with the critical-thinking and research skills that top universities value. Unlike national curricula that specialise early, the IB requires breadth: students study six subjects across different disciplines, plus three core components.
Universities worldwide — including Oxford, Cambridge, Harvard, MIT, and the Ivy League — recognise and actively recruit IB students. In many countries, IB graduates receive advanced standing or course credit.
IB Subjects List — All 6 Subject Groups
Every IB Diploma student takes six subjects (three at Higher Level, three at Standard Level) plus three compulsory core components. The programme is assessed through a mix of external exams and internal coursework.
1
Group 1: Studies in Language and Literature
English A, Spanish A, French A, etc.
Students study their best language through literature and non-literary texts, developing critical analysis and communication skills.
2
Group 2: Language Acquisition
English B, French B, Spanish ab initio, Mandarin B, etc.
A second language studied at a level matching the student's ability — from beginner (ab initio) to near-native (B).
3
Group 3: Individuals and Societies
Economics, History, Geography, Psychology, Business Management, ESS, etc.
Humanities and social sciences that examine how individuals and societies function.
4
Group 4: Sciences
Biology, Chemistry, Physics, ESS, Computer Science, etc.
Experimental sciences with a strong emphasis on practical work, data analysis, and the scientific method.
5
Group 5: Mathematics
Maths: Analysis and Approaches, Maths: Applications and Interpretation
All IB students must study mathematics. The two courses cater to different interests — pure maths vs applied/statistical maths.
6
Group 6: The Arts
Visual Arts, Music, Theatre, Film, Dance
Creative subjects that develop artistic skills, critical reflection, and cultural understanding. Students may replace Group 6 with an additional subject from Groups 1–4.
IB Core Components
In addition to six subjects, every IB Diploma student completes three compulsory core components.
Theory of Knowledge (TOK)
An interdisciplinary course that explores how we know what we claim to know. Students examine the nature of knowledge across disciplines, write an essay, and deliver a presentation. Contributes up to 3 bonus points.
Extended Essay (EE)
A 4,000-word independent research paper on a topic of the student's choice. Develops university-level research, writing, and critical-thinking skills. Contributes up to 3 bonus points (combined with TOK).
Creativity, Activity, Service (CAS)
Students complete a programme of creative, physical, and community projects over two years. CAS is not graded but must be completed to receive the IB Diploma.
Standard Level (SL) vs Higher Level (HL)
Every IB Diploma student takes three subjects at Higher Level (HL) and three at Standard Level (SL). The key differences:
| Aspect | Standard Level (SL) | Higher Level (HL) |
|---|---|---|
| Teaching hours | 150 hours | 240 hours |
| Depth of content | Core syllabus | Core + HL extensions |
| Exam length | Shorter papers | Longer papers |
| Maximum grade | 7 | 7 |
| University requirements | General entry | Often required for related degrees |
IB Grading System
Each of the six subjects is graded 1–7, giving a maximum of 42 points. Up to 3 bonus points are awarded based on the combined performance in TOK and the Extended Essay, for a maximum total of 45 points.
Max subject score
7 per subject × 6 = 42
Bonus points
Up to 3 (TOK + EE)
Maximum total
45 points
Pass requirement
24 points minimum
Average score
~30 points worldwide
Top score (45)
<1% of candidates
University Recognition
- All UK universities (inc. Oxford and Cambridge) accept the IB Diploma, and many publish specific IB point requirements.
- US universities including all Ivy League schools actively encourage IB applications. Many grant college credit for HL scores of 6 or 7.
- The IB is recognised by universities in over 100 countries, including Australia, Canada, the Netherlands, Singapore, and more.
- IB graduates are statistically more likely to attend a top-100 university compared to students with other qualifications.
- Higher Level subjects at grade 6 or 7 are often accepted for advanced placement or course credit, saving time and money at university.
Study IB Subjects on Aimnova
Tap a subject to explore notes, flashcards, mock exams, and exam skills.
Business Management
In-depth study notes, revision flashcards, and practice questions covering all Business Management topics for SL and HL.
Free IB Study Resources
Every tool you need to prepare for IB exams, in one place.
Study Notes
Clear, concise notes for every IB topic — written by IB graduates and organised by unit and micro-topic.
Flashcards
Spaced-repetition flashcards to lock key concepts into long-term memory before exam day.
Mock Exams
Full-length practice papers under timed conditions with AI grading and detailed mark-scheme feedback.
Question Bank
Thousands of original IB-style questions sorted by topic, command term, and difficulty — with instant AI feedback.
Exam Skills
Learn how IB examiners mark papers, master command terms, and develop the technique that earns top marks.
Revision Guides
Structured revision plans, exam timelines, and strategy guides to make every study session count.
Frequently Asked Questions
- The International Baccalaureate (IB) Diploma Programme is a two-year pre-university course for students aged 16–19. Students study six subjects across different disciplines (three at Higher Level, three at Standard Level), plus three core components: Theory of Knowledge (TOK), an Extended Essay (EE), and Creativity, Activity, Service (CAS). It is recognised by universities in over 100 countries.
- IB Diploma students take six subjects: one from each of the six subject groups (Language & Literature, Language Acquisition, Individuals & Societies, Sciences, Mathematics, and The Arts). Three subjects are studied at Higher Level (HL) and three at Standard Level (SL). Students may replace The Arts with an additional subject from another group.
- Each IB subject is graded 1–7 (7 being the highest). With six subjects, the maximum from coursework is 42. Up to 3 bonus points can be earned from TOK and the Extended Essay, giving a maximum of 45 points. The minimum to pass is 24 points.
- Higher Level (HL) subjects have more teaching hours (240 vs 150), cover additional content and depth, and have longer exams. Universities often require specific HL subjects for certain degrees. Standard Level (SL) covers the core syllabus and is still rigorous.
- Top universities worldwide — including Oxford, Cambridge, the Ivy League, and many more — actively recruit IB students. IB graduates are statistically more likely to attend a top-100 university. Many universities offer advanced standing or credit for high HL grades.
- It depends on your strengths, but subjects generally considered more accessible include ESS (Environmental Systems and Societies), Business Management SL, and Visual Arts. The "easiest" subject is the one that aligns with your interests and study habits.
- Aimnova currently offers comprehensive resources for IB Environmental Systems and Societies (ESS) and IB Business Management, at both SL and HL. More subjects are coming soon.
- All study notes are free to read. Premium features like AI-graded mock exams, the full question bank, and advanced analytics require a subscription.
- Our mock exams simulate real IB exam conditions — full paper structure, authentic timing, and AI-powered grading that follows official IB mark schemes. You receive detailed feedback immediately after submission.
- Yes. Aimnova is fully responsive and works on any device — phone, tablet, or desktop. Study anywhere, anytime.
What is the IB Diploma Programme?
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What is the IB grading scale?
What is the difference between IB SL and HL?
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How to Revise for IB Exams
IB exams require a structured, evidence-based approach to revision. The best IB students combine active recall, spaced repetition, and timed practice to maximise retention and exam performance.
Spaced Repetition
Review material at increasing intervals to move knowledge into long-term memory. Flashcards with spaced repetition are one of the most scientifically proven study methods.
Try Free FlashcardsActive Recall
Test yourself instead of passively re-reading notes. Use practice questions and past papers to actively retrieve information from memory.
Practice QuestionsTimed Mock Exams
Simulate real exam conditions with full-length papers, authentic timing, and AI grading. This builds exam stamina and reveals weak topics.
Take a Mock ExamTopic-by-Topic Notes
Study each micro-topic systematically with clear, concise notes. Understand the content before testing yourself on it.
Browse Study NotesCommand Term Mastery
IB examiners mark based on command terms. Learn exactly what "evaluate", "discuss", and "explain" require for full marks.
Learn Exam SkillsRevision Timetable
Plan your revision with a structured timetable that covers all subjects and topics. Start early, spread it out, and build in rest days.
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