(Used for Tiffin Year 9 scheme of work) (a) Methods for solving problems involving direct and indirect proportion, including the unitary method (but not quadratic/cubic/root relationships). (b) Problems involving ratio. (c) Extension: 3 way relationships, e.g. "If it takes a men b hours to dig c holes..." This (intentionally) does not make reference to the GCSE method of establishing the constant of proportionality.

Hi You make reference to revision pack numbers? where might I locate this?

## Raj

## 2nd Aug 2017 Flag Comment

There are grammatical errors on slide 5