Six matchings involving set notation and shading Venn diagrams. Hopefully these will encourage discussion in the classroom and they are designed as starters or plenaries where students, since most of the answers are there, are encouraged to try harder problems than they might normally do.

Four matchings - two relatively easy and two more challenging. These are designed to be used as starters or plenaries and will hopefully give students the confidence to tackle tougher problems than they usually do.

Six matching activities: 1 mode, 1 median, 1 mean, 1 mixture (all include frequency tables), 2 grouped data. These are designed to be starters or plenaries but could be used as a whole lesson activity if you wish.

Twenty two codebreakers on various topics including bearings, similarity, scale drawing, simultaneous equations (linear/quadratic), circles, angles, transforming functions, metric units, Pythagoras and trigonometry and 3D views. The usual format of correct answers revealing the punchline to a cheesy joke.

Four spiders on sets and two on shading Venn diagrams. Hopefully these will create a little discussion and make students think. A couple of the diagrams now improved.

I have split this into two types: substitution involving rearranging and algebraic rearranging (four of each, each getting increasingly difficult). The substitution spiders are pretty straightforward but the algebraic ones should lead to discussion in class and will allow students to demonstrate (or not) that they fully understand the topic.

Twenty three "defuse the bomb" worksheets and answers on various topics including vectors, inequalities (solving, number lines and regions), shapes, bearings, rearranging formulae, transforming functions, trigonometry in right-angled triangles, similarity and surface area. These are self-marking to the extent that if their answer doesn't appear in the list of possible answers then they need to check what they've done which allows students to just get on and grow in confidence.

Three "spiders" containing increasingly difficult questions moving from just reading the graph through calculating distance travelled to calculating acceleration.

Three "spiders" involving three different distance-time graphs and questions involving read them and speed. Hopefully this has covered most, if not all possible questions from a distance-time graph.

Just the three "spiders" on bearings, of increasing difficulty. The final spider asks students if they can write the question based upon the information given which may lead to a nice discussion in class.

A set of six spiders which encourage students to show every stage of their calculations as they tackle increasingly difficult questions. There are also some question where the answer is given and the workings shown so that students can work backwards; this is designed to avoid students getting stuck in a rut and not thinking about what they are doing in each case.

I have so few resources for a lesson on 3D views that I felt I had to write one and this came to mind. The usual cheesy joke having found all the answers. Depending on the class I do this with I may allow multilink usage or I may not; you will know your class better than I.

Six spiders on surface area and volume (3 of each) and a final "problems" spider. They are of increasing difficulty, moving from cubes and cuboids to prisms to cones, spheres and pyramids. These are designed to avoid students getting into a rut of performing a mathematical recipe by asking a mixture of finding surface area/volume to working backwards. These usually encourage discussion in class.

Four spiders, two with curve and two involving trigonometric functions. These are designed to be used as starters or plenaries but they also work as consolidation activities.

Five matching activities involving the Sine Rule, Cosine Rule and finding the area of a triangle using trigonometry. These are designed to show learning/demonstrate understanding whether as a starter or plenary but could be used all together as a lesson's main activity.

This takes students through six matching activities, three on finding sides and three on finding angles. Designed to create discussion and to be used as a starter/plenary but use how you wish if you choose to download it.

Four matchings getting increasingly difficult at they go Firstly spot the correct formula for the correct triangle, the next two calculate a missing side and finally use Pythagoras to find the area of a shape. These have been designed to be used as starters or plenaries but you could use them as a main lesson activity; up to you.

There are eight matchings here: 4 surface area and 4 volume. They get increasingly difficult moving through cubes/cuboids to prisms to cones, cylinders, pyramids and spheres. These are designed to be used as starters or plenaries but you can use them for a lesson main activity, totally up to you.

This takes students through basic shapes (rectangles and triangles) to trapeziums and parallelograms and finally circles, including compound shapes. I use these as starters or plenaries but use them how you like.

All triangles and quarilaterals plus a regular polygon slide with 8 statements that students must decide whether they are always, sometimes or never true. This should create discussion. I have said that squares are a type of rectangle, and a rhombus is a type of parallelogram.