Here you can see my videos about A-level mathematics organised by the Chapters in the A-level textbooks. The content should be very similar for all exam boards for single maths A-level.

Note: Work in Progress! Please check back soon for more content. This content is actively in development and expected to be much more complete by Summer 2020!

## Chapter 1 Proof

## Chapter 3 Sequences and Series

1. Intro to sequence notation

2. Arithmetic progressions (APs)

3. General formulae for APs

4. Geometric progressions (GPs) including general formulae

5. Sigma notation for summing series

6. Sum of an AP

7. Sum of a finite GP

8. Sum to infinity of a GP

9*. Summing the harmonic series

10*. Calculating mortgage repayments using geometric progressions

11*. The link between differencing sequences and differentiating functions