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Diploma Programme study guides
Practical guides covering every assessed component of the Diploma Programme — Internal Assessment, Extended Essay, TOK, and all 25 subjects. Each guide is written against the official assessment criteria for that subject.
Featured guides
How to write an Internal Assessment
Step-by-step guide covering research questions, methodology, data, analysis, and citations — with the exact detail examiners look for.
Extended Essay guide
All 5 EE criteria explained, grade boundaries, topic ideas across 8 subjects, and advice on the RPPF.
TOK essay guide
Prescribed titles, Areas of Knowledge, mark band descriptors, and how to write an essay that earns 9–10.
Best IB IA feedback tools (2026)
Compare rubric accuracy, criterion scoring, integrity, pricing, and subject coverage.
ChatGPT vs iBacalao for IB IA
Side-by-side comparison for students deciding between general AI and IB-specific feedback.
Subject-specific assessment guides
Each guide shows the exact assessment criteria for that subject, with mark bands and what examiners look for.