A. D. Gardiner, **Teaching mathematics at secondary level**. The De Morgan Gazette 6 no. 1 (2014), 1-215.

**From the Introduction:**

This extended essay started out as a modest attempt to offer some supporting structure for teachers struggling to implement a rather unhelpful National Curriculum. It then grew into a *Mathematical manifesto* that offers a broad view of secondary mathematics, which should interest both seasoned practitioners and those at the start of their teaching careers. **This is not a DIY manual on How to teach**. Instead we use the official requirements of the new National Curriculum in England as an opportunity:

- to clarify certain crucial features of elementary mathematics and how it is learned — features which all teachers need to consider
*before*deciding `How to teach’.