Free IB Diploma lessons, by subject and topic

Short video lessons for IB1 (junior) and IB2 (senior), each with an original exam-style question. 20 lessons so far, new ones every day.

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IB Math AA | Year 1 (Junior)

Exponent Laws & What a Logarithm Is
Exponents and Logarithms · 1.5

3 Log Laws in 8 Minutes (7-Mark Paper 1)
Exponents and Logarithms · 1.7

IB Math AA | Year 2 (Senior)

Integration Basics in 9 Min (6-Mark Paper 1)
Integration and Areas · 5.5

IB Biology | Year 1 (Junior)

Amino Acids & Peptide Bonds: How to Draw Them
Proteins · B1.2

Protein Denaturation: Heat & pH Explained
Proteins · B1.2

Alpha Helix & Beta Sheet: Protein Structure
Proteins · B1.2

Tertiary & Quaternary Protein Structure
Proteins · B1.2

How Insulin Is Made (Polypeptide Modification)
Proteins · B1.2

Proteins Exam Practice (MCQ + 7-Mark Answer)
Proteins · B1.2

Proteins HL Exam Practice (MCQ + 7-Mark Answer)
Proteins · B1.2

Proteins Summary: 10 Things to Remember
Proteins · B1.2

Hydrogen Bonds in Water in 7 Min (6 Marks)
Water · A1.1

IB Biology | Year 2 (Senior)

Natural Selection Explained (6-Mark Question)
Natural Selection · D4.1

Natural Selection: Fitness in 8 Min (6 Marks)
Natural Selection · D4.1

IB Chemistry | Year 2 (Senior)

Radicals & Homolytic Fission Explained
Electron Sharing Reactions: Radicals · R3.3

IB Computer Science | Year 2 (Senior)

2D Arrays in Java: Rows & Columns
2D Arrays in Java · B2.2

IB Exam Practice

Distance vs Displacement in 6 Minutes (10-Mark Paper 2 Breakdown)
Hard Paper 2 & 3 Questions: distance vs displacement · Math AA 5.9

Complete the Square in 7 Minutes (9-Mark Paper 1 Breakdown)
Paper 1 Step by Step (SL): completing the square · Math AA SL 2.6

IB Study Skills, TOK & EE

Finish Your Extended Essay in 5 Checks (30-Mark Criteria Breakdown)
Extended Essay & Mock Exam Prep (IB2)

Plan Your IB Week in 7 Minutes (5 Deadlines, 3 Moves)
Time Management & First Steps in TOK (IB1)