A simple problem about inviting six people to a party - will there always be a group that know each other, or a group that are all strangers? An introduction to the idea of edges and vertices, in the form of a fun problem.

A simple worksheet with many questions such as 'reduce £70 by 20%'

Four worksheets covering the following topics - differences between times (minutes, hours days) - hourly wages (including time and a half and double time) Used for National 4 Lifeskills Finance Module

A powerpoint presentation to introduce the idea of functions having 'fixed points'. For example, the fixed point of f(x) = 2x - 5 is when x = 5. Goes on to talk about 2D fixed points, before finishing with a riddle that can be solved by thinking about fixed points.

A worksheet with four pre-printed distance-time graphs for pupils to interpret. Their answers should be sentences such as "go at 4 metres per second for 3 seconds, then pause for 2 seconds, then ..."

Everything you need to revise angles! The first Power Point covers - types of angle, angles in circle (360), angles on a straight line (180), angles in a triangle (180), corresponding and alternate angles, right angled and isosceles triangles The second Power Point covers - a big one-slide recap, a challenging question, places you might see some of the shapes involved

A series of four worksheets to progressively introduce pupils to the idea of adding and subtracting fractions by matching the denominators. Rather than just presenting it to them as a rule, they work through simple examples to gain an understanding of what is happening. I wrote this out of frustration with a poor class who simply didn't seem to understand how fractions worked, and although they could memorise a method, would then misapply it (for example, trying to add three fractions with them was a disaster, until they actually understood what they were doing)

Some not very exciting but essential practice, with increasingly difficult questions such as - 1/4 of 24 - two thirds of 12 - increase £20 by a fifth - find two fifths of £11 - decrease £9.99 by a tenth

A fun Power Point about Rowan Hamilton's discovery of Quaternions. There are no actual formulas given here (just a hint that it's about 4D space), the point of the presentation is just that he had a brain wave while crossing a bridge and carved it into the bridge. Can be used with a junior class talking about 'inspiration' or a more senior class who know about complex numbers if you want to go into the actual equations of quaternions.

A great way to introduce formulas, with a fun activity to estimate how fast your reaction time is. The Power Point introduces the idea of reaction time then shows pupils a simple experiment they can do, which leads to a formula for converting centimetres on a ruler to reaction time in seconds.

Tired of your usual lesson starters? These six Power Points are on - how old are you in seconds - using coins - a famous question solved by Gauss - penguins - pandas - temperature in the UK and US

A series of seven Power Points with collections of questions that appear one at a time on the following topics: - adding (e.g. 20p add 50p) - which is bigger (pictures of coins) - count (counting coins) - divide (quarter of 80p) - how many coins (needed to make 13p) - multiply (2 x 29 pence) - subtract (£1 minus 45 pence)

A short guide for how to create a Google Survey, which I have been using for pupils to fill in their exam feedback.

A chance for pupils to put their Pythagoras knowledge to the test! They measure a few distances indoors (e.g. their jotters) and check then check if the diagonal is the length they expected by Pythagoras. Then they go outside the classroom and measure some distances in feet (their own feet) or paces.

Two sets of questions with answers on: - function machines - forming and solving simple equations - simplifying expressions - substitution

A worksheet of simple maths problems aimed at 11+ year olds, which mostly involve fractions plus a bit of angles

A two page Power Point with questions revising arcs and sectors.

Two Powerpoint slides of more quadratic problems - e.g. path of a projectile, minimum area etc. Answers included.

A one page Powerpoint using 3D coordinates to introduce how to find the distance from one corner to the opposite in a cuboid.

A problem solving project where pupils use Pythagoras to find how far away the horizon is, depending on your height about sea level. This is an open-ended project, where rather than being given all the information up front the pupils have to work in groups to explore the problem, then reflect on what techniques were effective. It practices several useful skills such as Pythagoras, circle geometry, expanding brackets and rearranging formulas. There is the scope for very good pupils to extend the project in interesting directions.