Shared across all four courses, arithmetic and geometric sequences and series are studied using the formulae for the nth term and the sum of the first n terms, with sigma notation used to express sums compactly. Applications include real-life contexts such as population growth, salary changes and the spread of disease. The sum of infinite convergent geometric series is also addressed, requiring the condition |r| < 1. In AA the treatment is more formal and algebraically driven; in AI the emphasis falls on interpretation, modelling and the use of technology to generate and display sequences.
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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