The 17th in Mr Barton's Autograph Video tutorial series. This week we take a look at how to construct Circle Theorems using Autograph, beginning with the Angle at the Centre Theorem. We also see how understanding this theorem leads us to another theorem for free! Autograph's dynamic nature makes it perfectly suited to demonstrating circle theorems to your students. 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 18th in Mr Barton's Autograph Video tutorial series. Whilst we are on a roll with the Angle at the Centre Theorem, why not have a quick look at a nice little twist? We can use Autograph to set up some circumstances where the theorem doesn't seem to work. Has maths been broken, or can your students figure out what is going on?... 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 video tutorial on how to use Bivariate data in Autograph. This time Douglas Butler takes us through how we can do scatter graphs and lines of best fit on Autograph by looking at an interesting relationship between the weights of babies and the gestation period. To see all the videos in Mr Barton’s Autograph Video series, just click on the web-link below.

A tutorial video from the Autograph team on how to transform shapes in a graph. Using Autograph to demonstrate different types of transformation: translation, enlargement, rotation and reflection. Clicking on the web-link below takes you to all the videos in this series.

A video from the Autograph team. One of the classic 'goat grazing a field' geometry problems demonstrated. Clicking on the web-link below takes you to all the videos in this series.

The sixteenth in Mr Barton's Autograph Video tutorial series. A great tutorial for guidance on using Autograph to work with raw data. I know I said last week was the last data one, but a request came through on the emails, so I thought I had best cover it whilst we are on a roll! So, this week we look at different ways of entering grouped data, another way of comparing data, and we take another look at the Results Box. 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 ninthvideo in Mr Barton's Autograph tutorial series. This time we look at the basics of measuring angles in 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.

The eleventh video in Mr Barton's Autograph tutorial series. Following a suggestion from none other than Autograph creator Douglas Butler, we take another look at some of the things you can do with Raw Data on Autograph, including quickly creating a data set. More stats to come next week! 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 tutorial video from the Autograph team on transformations in 3D. Because of the extra dimension transformations are somewhat different in three-dimensions. In this activity we will see what those differences are. Clicking on the web-link below takes you to all the videos in this series.

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 tutorial video from the Autograph team on the feature of 'export to webpage'. Share your work with people who don&'t have Autograph installed using the Autograph player . Clicking on the web-link below takes you to all the videos in this series.

A video from the Autograph team. There may be some occasions when you want to prepare a file in advance of the lesson. For example Pin Boards are great for geometrical reasoning but the construction is not very helpful. Clicking on the web-link below takes you to all the videos in this series.

A tutorial video from the Autograph team on Euler's 9 Point Circle. In this starter activity for KS3/KS4 you will be introduced to Object Selection and the Right-click Menu, which are used in most Autograph files. Clicking on the web-link below takes you to all the videos in this series.

A video from the Autograph team. Autograph can be used to great effect to enhance a lesson, but to do this you need to follow the simple three step rule. Clicking on the web-link below takes you to all the videos in this series.

A tutorial video from the Autograph team. The concepts learnt in the investigation of areas can also be applied to volumes of revolution. Suppose the region under the curve y = f(x) between x = a and x = b is revolved around the x-axis to form a solid. What is the volume of this solid? How can we approximate the volume? Clicking on the web-link below takes you to all the videos in this series.

A video from the Autograph team. The Binomial approximation is often used for approximating powers of numbers close to 1, but how close to 1 do we need to be in order for the approximation to be any good? Clicking on the web-link below takes you to all the videos in this series.

A tutorial video from the Autograph team. A step-by-step guide on how to explore the connection between the angle at the centre of a circle and the angle at any point on the circumference in Autograph. Clicking on the web-link below takes you to all the videos in this series.

A tutorial video from the Autograph team on Sound Mirrors. Very useful whn teaching algebra. In the 1920s, some very large structures were built along the South Coast of England to deal with the increasing threat of aerial attack. Clicking on the web-link below takes you to all the videos in this series.

A tutorial video from the Autograph team on vectors. Addition, subtraction and multiplication of vectors in Autograph. Clicking on the web-link below takes you to 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.