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

To substitute positive and negative integers into formulae. A lesson and a game that involves codes to test students' knowledge of algebraic expressions, substitution and negative numbers

In a special 'loved-up' edition of Mr Barton's Autograph videos, we look at a romantic (mathematical) alternative to chocolates and flowers to send to the love of your life to let them know you care. Happy Valentines Day! 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 32nd in Mr Barton's Autograph Video tutorial series. In preparation for the next few videos, we take a look at some of the important tools needed for getting the most out of Autograph's unique 3D engine. 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 10th in Mr Barton's Gapminder World Video series. This week we take a look at Employment Rates around the world. Is it the case that the richer you are, the higher proportion of your population are in work? And how about if we just look at 15-24 year olds? 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 3rd in Mr Barton's Gapminder World Video series. Here we look at the relationship between the age women are getting married and their fertility rate, and we observe some startling results. Once again three countries are chosen for our focus: China, the UK and Algeria. 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

12 questions on negative numbers that can be developed into a team game against the clock.

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/blog/probing-maths-questions-index-page/

Displays all the multiples of a given number on a number grid. Both the number and the starting number of the grid can be altered.

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

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

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

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

A simpler version of the puzzle. Print out or just project on the board for whole class discussion.

A tutorial on using Autograph to work with grouped data.The fifteenth in Mr Barton's Autograph Video tutorial series. In our final look at data for a while (you can have too much of a good thing) we tackle an issue with commas and how to alter the sizes of your groups. 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 9th in Mr Barton's Gapminder World Video series. In a video dedicated to Chris Holden, Amy Holden and their beautiful new baby daughter Isabelle Rose Holden, this week we look at some time series data on population growth rates around the world. How does the growth rate of the UK and USA compare to that of Qatar and Kosovo, and what on earth is going on in the Cayman Islands? 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 excellent tutorial video from Douglas Butler which reveals a simple and highly effective way of demonstrating to students where the least squares regression line comes from. To see all the videos in Mr Barton’s Autograph Video series, just click on the web-link below.

A Tarsia activity by Alan Catley. Please Note: This Tarsia contains images and the links to these images are broken when the Tarsia is copied. Before using this jigsaw you will need to paste the images into the correct positions on the Input screen. This activity involving images of lines intersecting circles and corresponding pairs of simultaneous equations can be used in a variety of ways.

The 11th in Mr Barton's Gapminder World Video series. In this video, we fuse together two of my favourite things - Gapminder World and Autograph. We see how we can process the data from Gapminder using Autograph's powerful statistical engine in order to anyalse the strength of correlation. More statistical diagrams 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