Spot the errors exercise for estimating/approximating calculations. Some answers are correct, a lot are deliberately wrong. Same activity presented in two formats (ppt for those who don't have Active Inspire). Credit to nvitamore for the original test questions and idea.

Powerpoint for delivery in class to identify the equation of a straight line from its graph, then plot lines from their equations. Two supporting worksheets (one borrowed from another TES user - I take no credit for the equation of a line from its graph sheet). Used with my Y10 class, writing/drawing the answers on over the powerpoint as we went through it. The sheet on plotting points in all four quadrants to form a shape was our starter. If you decide to use any bits please leave feedback about what could be improved/what you found helpful. Thanks.

This is a just a list of definitions for a few key words and types of data and samples that I gave my year ten class when we started the GCSE syllabus. May be useful to anyone wanting to give a basic glossary for pupils starting to look at data handling/collection.

A very simple idea to make introducing probability a bit more engaging. Print cards stating standard probabilities that students will need to know then put them into an old, empty tissue box. Get students to pick out a card and state the fraction for the probability described on their card. (Eg. Probability of getting head when you flip a coin.) Some are very straightforward, others are more complex to prompt discussion. As always, feedback and suggestions for improvement appreciated.