A visual proof of why the angles in a triangle sum to 180 degrees.

Algebra Level 6 Algebra Level 7 Expanding brackets Whole class activity Randomly generates all different types of brackets for students to expand and simplify. also gives answers

A way of introducing how to factorize quadratic equations by means of a number game. This PowerPoint presentation gives questions on sum and product followed by factorizing quadratic questions. Ideal for KS3 and KS4 students as a revision plenary or starter.

SSM Transformations Level 5 To be able to recognise the order of rotational symmetry of any shape. A simple animated presentation to demonstrate rotational symmetry to students

A Tarsia Jigsaw activity on finding averages (mean, median, mode) and the range. These type of activities can be used to consolidate understanding of a given topic, and foster positive group work and co-operative learning. By making adjustments such as removing answers and making deliberate mistakes, they can be made even more challenging and engaging to the students. To download the latest version of the wonderful free software to open this resource (and create your own), click on the web-link. If you have any comments, or spot any (non deliberate!) mistakes, please share them below.

A few years ago I wrote a set of notes for pupils and put them on my website. The notes were supposed to be written in a pupil-friendly way, and different to notes students might find in textbooks or elsewhere on the internet. I have converted the notes to PowerPoint slides so you can download them, adapt them if needed, use them in revision lessons or perhaps give your students a set to take home with them to help them prepare for exams. The chances are there will be a few mistakes here and there, so if you spot any please email me & I will correct them. Hope they are of use!

A puzzle for the classroom wall, which could maybe form part of some kind of weekly competition.

A nice bingo game to add some spice to practicing averages.

A few years ago I wrote a set of notes for pupils and put them on my website. The notes were supposed to be written in a pupil-friendly way, and different to notes students might find in textbooks or elsewhere on the internet. I have converted the notes to PowerPoint slides so you can download them, adapt them if needed, use them in revision lessons or perhaps give your students a set to take home with them to help them prepare for exams. The chances are there will be a few mistakes here and there, so if you spot any please email me & I will correct them. Hope they are of use!

students must shade in squares in order to form patterns with one or two lines of symmetry, or orders of rotational symmetry. patterns are randomly generated and answers are automatically checked

SSM Level 6: Powerpoint lesson - To find the circumference and area of a circle- clear explanation and examples. A lesson that introduces pi and explains how to use it to find the area and circumference of a circle

A lesson involving a board game and some follow-up questions to test student's understanding of substitution.

A 4th Tarsia activity on Equivalent Fractions. These type of activities can be used to consolidate understanding of a given topic, and foster positive group work and co-operative learning. For more ideas on how to use these types of activities (including twists!) and to download the latest version of the wonderful free software to open this resource (and create your own), just click on the web-link. If you have any comments, or spot any (non deliberate!) mistakes, please share them below. Many thanks to all the teachers who have helped me assemble these Tarsias over the years.

Number Level 5: Tests students' ability to add, subtract, multiply and divide with negative numbers by generating random questions and providing the answers. can be used for whole class teaching or to generate worksheets

A recap of mean, median, mode and range, complete with some catchy little poems!

a quick recap on squares, cubes and roots

A few years ago I wrote a set of notes for pupils and put them on my website. The notes were supposed to be written in a pupil-friendly way, and different to notes students might find in textbooks or elsewhere on the internet. I have converted the notes to PowerPoint slides so you can download them, adapt them if needed, use them in revision lessons or perhaps give your students a set to take home with them to help them prepare for exams. The chances are there will be a few mistakes here and there, so if you spot any please email me & I will correct them. Hope they are of use!

A very simple activity to show how some diagrams can be misleading.

A brilliant Tarsia activity by Gill Hillitt on algebraic fractions. These type of activities can be used to consolidate understanding of a given topic, and foster positive group work and co-operative learning. For more ideas on how to use these types of activities (including twists!) and to download the latest version of the wonderful free software to open this resource (and create your own), just click on the web-link. If you have any comments or feedback for Gill, please share them below.

A set of games which can be used to illustrate the importance of probability.