Brainlag Learn / GCSE Maths
Sequences
Term-to-term rules, the nth term of linear sequences, special sequences, geometric sequences and (Higher) the nth term of quadratic sequences.
Lessons
- Term-to-term rulesContinue a sequence, describe its rule, fill gaps, and generate terms from a rule or an nth term. 20 min, free
- The nth term of a linear sequenceFind the nth term from the common difference, and use it to test values and find positions. 25 min, with the Graphing Calculator, free
- Special sequencesSquare, cube and triangular numbers, Fibonacci-type sequences, and telling sequence types apart. 20 min, Plus
- Geometric sequencesSequences that multiply by the same number each time, growth and decay, and surd ratios. 20 min, with the Graphing Calculator, Plus
- Quadratic sequencesWhen the differences change by the same amount each time, the nth term has an n² term. Find it. 25 min, Plus, Higher tier
Practise and test
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