Pupils are presented with sets of three trigonometric ratios and must decide which one is the odd one out.

Mr Barton's Web Whizz Video 8: This is a video review of a blog website. This is one of my “must visit on a regular basis” websites. It is a blog set up by a very enthusiastic and talented teacher that certainly keeps me up to date on the latest exciting developments in maths teaching and technology. There are gems such as online interactive whiteboards and collections of amazing rich tasks. The 8th in a new series of videos where each week I visit my favourite mathematics websites.

A brilliant Tarsia activity by Gill Hillitt on factorising negative quadratics. 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 brilliant Tarsia activity by Gill Hillitt on trigonometric addition formuale. 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 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 nice demo of why you don't add the numerators and denominators of fractions.

Ks4 Geometrical Reasoning. ICT in the maths classroom. Demonstration. The 34th in Mr Barton's Autograph Video tutorial series. Let's put last week&'s cube into good use by looking at how we can use it to help illustrate the difficult topics of Pythagoras and Trigonometry in 3D. Below the video you will find an option to download it and play it on a larger screen, or by clicking on the web-link you can see all the videos in this series.

Using Pythagoras to calculate the hypotenuse of right angle triangles given two lengths. An excel file that randomly produces right angled triangles for students to calculate the hypotenuse. just enable macros and press F9 for another example

A Video Tutorial on using Autographs for parallel and perpendicular lines at KS3/KS4. The 26th in Mr Barton's Autograph Video tutorial series. This week we follow-up our work on straight lines with a look at how you might tackle the topics of parallel and perpendicular lines on Autograph. Below the video you will find an option to download it and play it on a larger screen, or by clicking on the web-link you can see all the videos in this series.

An Autograph Player activity to challenge students' abilities to visualise and understand all four transformations. You can use this activity on the interactive whiteboard, or for your students to investigate on their own. Autograph does not need to be installed to use this activity (so your students can even use it at home), but you will need to install the free Autograph Player add-on (instructions given after clicking the link). For a full list of Autograph Activities, please click on the other web-link.

An Autograph Player activity to illustrate the Cyclic Quadrilateral circle theorem. You can use this activity on the interactive whiteboard, or for your students to investigate on their own. Autograph does not need to be installed to use this activity (so your students can even use it at home), but you will need to install the free Autograph Player add-on (instructions given after clicking the link). For a full list of Autograph Activities, please click on the other web-link.

A Tarsia activity on expanding linear expressions. 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 simplifying surds. 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 linear sequences (nth term rule). 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.

The third video in Mr Barton's Autograph tutorial series. In this video we look at how to carry out Rotations in Autograph 3.3. Below the video you will find an option to download it and play it on a larger screen, or by clicking on the web-link you can see all the videos in this series.

A Tarsia activity on Fractions, Decimals and Percentages. 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 revision for Core 2. 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 video tutorial on how to use Wolfram Alpha. The 4th in a new series of videos where each week I visit my favourite mathematics websites. There are few search engines that can rival Google, but for a mathematician, Wolfram Alpha certainly comes close. It is incredibly powerful and incredibly fun too. Are Craigs more popular than Kates and how often are people talking about mathematics? Wolfram Alpha has the answer. Please share how you use the website below.

The 29th in Mr Barton's Autograph Video tutorial series. Following on from our work on Scatter Diagrams, we take a look at how the Line of Best Fit is calculated. This provides a valuable link from Key Stage 4 maths to A Level Statistics as Autograph is able to clearly demonstrate the method for finding the least squares regression line. Below the video you will find an option to download it and play it on a larger screen, or by clicking on the web-link you can see all the videos in this series.

The 4th in Mr Barton’s Gapminder World Video series. Is there a link between how wealthy a country is and the average Body Mass Index of its population? Is there a link between the wealth of a country and the quality of its population’s teeth? There’s only one way to find out! Below the video you will find an option to download it and play it on a larger screen, or by clicking on the web-link you can see all the videos in this series