Discussion about this post

User's avatar
Aaron's avatar

Hi Barry, I'm not sure where to post this, so sorry for the odd placement of this question.

I am using the ebook version of your text. In the final chapter of the Primary chapter (proportions), I think there is a typo. it tells the reader abotu how to find a vairable in a fraction by cross multiplication. It shows \frac{32}{20}=\frac{x}{10} as equivalent to {20x}={32}*{20} = {20x}={320}, which is not correct.

I love the book and will rely heavily on it as I embark on a new journey of teaching secondary maths from 2024.

Aaron

Expand full comment
4 more comments...

No posts