will not interrupt what you are doing.
GCSE/IGCSEFM Functions
2 files02/10/2019
Covers the definition of functions, composite functions and inverse functions. For IGCSE Further Maths, also covers piecewise functions and domain/range.
Congruent Triangle Proofs
2 files13/05/2016
Includes harder follow up questions where you use a completed congruence proof to make subsequent justifications.
GCSE Counterexamples & Proofs Involving Integers
1 files12/03/2020
Covers counterexamples, 'even/odd proofs' and proofs involving algebraic representation of consecutive numbers, odd numbers, etc.
Quadratic Inequalities
1 files07/05/2017
Covers all aspect of the GCSE specification on quadratic inequalities. Includes an exercise.