A Tarsia activity on Estimating Calculations. 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 brilliant Tarsia activity by Gill Hillitt on completing the square. 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.

Pupils must identify the mistakes made when setting out each of these four sets of scales.

Pupils must find a route to the target number by adding and subtracting decimals.

A presentation that tests pupils' abilities to identify the equations of straight line graphs, before developing this skill for representing linear inequalities graphically.

Four questions on integration with drop down menus to choose your answer. Highlights important misconceptions.

Match the equation of the line with the table of co-ordinates.

A match up activity for all the important area and volume formulae.

an introduction to the laws of indices

Graphically demonstrates arithmetic and geometric series on separate worksheets before comparing the two.

A nice demo of why you don't add the numerators and denominators of fractions.

A full lesson on f, d, p conversions.

Some nice volume questions.

The famous area puzzle where a square disappears!

Some bright and colourful ratio questions.

Another jigsaw practicing nth terms.

A substitution activity based on the game show.

A jigsaw testing knowledge of factors, multiples, prime factors, hcf and lcm.

A jigsaw with negatives and squares added to increase difficulty.

Pupils are faced with a series of questions and answers and they must decide if they are correct or not. Highlights some important misconceptions.