Covered in AA SL and AA HL, deductive proof introduces students to the nature and structure of mathematical reasoning. Students construct simple proofs, both numerical and algebraic, working from a left-hand side to right-hand side format using correct notation for equality and identity. At AA HL the scope broadens to include proof by equivalence, proof by exhaustion, disproof by counterexample, and proof by contrapositive, with students expected to communicate their reasoning with full logical rigour.
Start here
Start by downloading the cheat sheet and the vocabulary below. After that, move to the video lessons with their respective exercise lists.
Video lessons
Learn the content with the videos provided and reinforce your comprehension by practicing with the exercise list above.
Take the mock exams
It’s time to put your knowledge to the test with our mock exams — the closest experience you’ll get to the real IB Math exams. Note: read the instructions on taking mock exams here.
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