Below you can find teaching videos on all GCSE and IGCSE Mathematics topics. There is also a page of Past Papers for Edexcel IGCSE and another page with exam questions by topic.

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## Number – Assorted topics

## Number – Primes, HCF and LCM

## Algebra – Quadratics

0. Solving factorised equations (**NEW** 2021)

1. Factorising quadratics (monic)

2. Solving quadratics by factorising

3. Difference of two squares

4. Factorising and solving non-monic quadratics

5. Factorising quadratics using the calculator (**NEW** 2021)

6. The quadratic formula

7. Completing the square

8. Solving quadratic equations on the calculator

ONLINE COURSE: Quadratic equations and inequalities – Mathsaurus course with teaching videos and worksheets with full video solutions

## Algebra – Expressions, Equations and Inequalities

## Algebra – Simultaneous Equations

## Algebra – Algebraic Fractions

## Algebra – Direct and Inverse Proportion

none available

## Calculus – Differentiation (IGCSE)

## Algebra – Functions

## Probability

- none currently available

## Set theory and Venn diagrams

## Geometry – Bearings and constructions

1. none available

## Geometry – Circles and parallel line theorems

## Formulae for 2d and 3d shapes

none available

## Pythagoras’ Theorem and trigonometry

## Transformations, vectors and co-ordinate geometry

none available