An impressive spreadsheet which covers bubble sort, shuttle sort, and other sorting algorithms. the original list of numbers can be edited to suit your needs.

Two resources for Transformations using Autograph. The first is a lesson which should take place in a computer room with one or two students to each computer. The second resource is a quick guide about how to carry out each of the four types of which can be used by students or teachers.

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!

An introduction to loci using ants.

An excellent lesson on correlation and the product moment correlation co-efficient, following the SMP S1 book, kindly donated by Lisa McNulty.

A Tarsia activity on adding and subtracting decimals. 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.

A presentation that introduces the main points about arrangements.

A lesson, complete with an interactive example, for teaching cumulative frequency and box plots.

In this number grid worksheet students must solve Pythagoras problems and enter the answers in the number grid. This is great for KS3 and KS4 students to practice finding sides of right angled triangles using Pythagoras theorem. There is a separate sheet for teachers with solutions.

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 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.

This a rich, Arithmagon activity on factorising quadratics, linking to expanding double brackets. I love Arithmagons as they allow consolidation of key topics when going Forwards, and then opportunities for extension, creativity and discovery when working Backwards. They are also really easy to modify to suit the particular needs of your class. For all the Arithmagon activities in this series, together with teaching notes and extra information, please visit http://www.mrbartonmaths.com/arithmagon.htm

Have a play around with this task, and please share any questions, extensions, simplifications, modifications, or lines of inquiry in the comment box below. The idea is to collect loads of suggestions that can then be used for effective differentiation. The full set of these tasks, along with additional notes, can be found here: http://www.mrbartonmaths.com/richtasks.htm

A nice 'fill in the words' exercise.

A simple way to introduce inverses as a means to solve equations.

A Tarsia activity on substituting into formulae. 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.

A Tarsia activity on solving equations. 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.

A Tarsia activity on equations and inequalities. 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.

A Tarsia activity on Factors and Multiples. 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.

A Tarsia Jigsaw activity on Solving Equations (x on both sides). 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.