# Ideas for the Secondary Classroom

This is a small collection of articles put together to give you some general ideas for secondary classrooms.

### A Random Rambling Rant

##### Stage: 1, 2, 3, 4 and 5

A random ramble for teachers through some resources that might add a little life to a statistics class.

### Euclid? No, but Carol, Yes

##### Stage: 4

For teachers. About the teaching of geometry with some examples from school geometry of long ago.

### Angle Measurement: an Opportunity for Equity

##### Stage: 3 and 4

Suggestions for worthwhile mathematical activity on the subject of angle measurement for all pupils.

### Stacks of Maths!

##### Stage: 1, 2 and 3

In this article for teachers, Bernard gives an example of taking an initial activity and getting questions going that lead to other explorations.

### The History of Negative Numbers

##### Stage: 3, 4 and 5

This article -useful for teachers and learners - gives a short account of the history of negative numbers.

### Proof: A Brief Historical Survey

##### Stage: 4 and 5

If you think that mathematical proof is really clearcut and universal then you should read this article.

### Enriching Networks, Inspiring Teachers

##### Stage: 3 and 4

Here are examples of how two schools set about the task of ensuring that problem solving was an integral part of their curriculum.

### 2010: A Year of Investigations

##### Stage: 1, 2 and 3

This article for teachers suggests ideas for activities built around 10 and 2010.

### Introduction to Number Plumber

##### Stage: 2, 3, 4 and 5 Challenge Level:

Video showing how to use the Number Plumber