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Each one opens the free lesson on that exact question or figure. Type the wrong answer from the video first and see what the page tells you, then get it right.

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100 exam-style questions in three levels, a timed mock paper with a mark scheme, and a note on every answer. One printable PDF. Every lesson on the site is from $59 for 12 months.

Year 7MYP Year 1, ages 11 to 12Buy for $19
Year 8MYP Year 2, ages 12 to 13Buy for $19
Year 9MYP Year 3, ages 13 to 14Buy for $19
Year 10MYP Year 4, Standard and Extended in one packBuy for $19
Year 11MYP Year 5, Standard and Extended in one packBuy for $19
IB Maths AA SLAnalysis and Approaches, Standard LevelBuy for $19
IB Maths AI SLApplications and Interpretation, Standard LevelBuy for $19

IB mocks in January? Two full mock exams, Paper 1 and Paper 2 (80 marks each), with IB-style mark schemes and the usual mistake on every question: AA SL Mock Exam Pack or AI SL Mock Exam Pack, $19 each.

Free downloads: IB Maths: 10 traps that cost marks and Is your child ready for Year 7 maths? (one-page PDFs, sent to your email).

Legs 9 and 12. Is the hypotenuse 21?MYP Year 9 · Pythagoras' theorem, question 2 Share 150 in the ratio 2 : 3. Is the larger share 50?MYP Year 8 · Sharing in a ratio, question 1 x² = 12x. Can you divide both sides by x?MYP Year 10 · Solving by factorising, question 3 Is √63 + 2√7 equal to 3√7?MYP Year 10 · Simplifying surds, question 5 8 seeds, each grows with probability 0.4. P(at least 3 grow)?IB Diploma · The binomial distribution, question 4 10-second challenge: 25% of 88, no calculatorMYP Year 7 · Percentage of an amount, question 3 Lean a parallelogram over. Does the area change?MYP Year 7 · Triangles and parallelograms, first figure Spot the mistake: (8 × 10⁹) ÷ (2 × 10³)MYP Year 9 · Calculating with scientific notation, question 3 10-second challenge: P(binoculars | camera)MYP Year 10 · Conditional probability, question 2 Move one point. What happens to r?IB Diploma · Correlation, the scatter figure Spot the mistake: f′(2) for 2x⁴ − 3x³ + 6x − 5IB Diploma · Differentiating powers, question 1 Move point B. What happens to the gradient?MYP Year 9 · Gradient, the first figure Spot the mistake: expand 2(3x + 5) − 4(x − 2)MYP Year 8 · Expanding brackets, question 8 10-second challenge: 16 to the power ¾IB Diploma Analysis and Approaches · Log laws, question 1 Spot the mistake: the first 5 terms of 243, 81, 27, …MYP Year 11 · Adding a geometric sequence, question 3 More: every lesson, Year 7 to the Diploma423 lessons, the first of every unit free