IA
Internal Assessment
Method, precision, and reflection in a compact format.
What this guide covers
Design a focused investigation, control variables cleanly, and evaluate with biological precision.
All Coursework Guides
Biology Coursework Guides
A revision-first playbook for focused experiments, precise data handling, and evidence-led biological argument. Open the assessment you are working on to see its criteria, markbands, checklist, and revision steps.
Open criteria guide
EE
Extended Essay
Independent research depth and critical thinking over 4,000 words.
What this guide covers
Develop an independent biological question with strong subject knowledge, sharp critical thinking, and disciplined structure.
Choose your assessment
Choose IA, EE, or IO. Start with the criteria and independently written markband guidance, then use the checklist and revision steps before you upload your draft.