Earliest recommended Year group: Year 12. Projectiles. You want to shoot a monkey hanging in a tree. But he's a cheeky monkey and at the exact moment you fire, he lets go and falls to the ground. Knowing this, where should you aim to be sure of hitting your target? This is from the “Something in Common” collection of resources by John Burke. They allow consolidation of key skills, prevent students from copying each other (as all the questions are different), make marking and assessing easy for the teacher (as all the answers are the same!), and provide a lovely extra challenge for students as they try to figure out exactly what is going on! To access the full collection, and read John’s background notes, please visit: http://www.mrbartonmaths.com/common.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 set of follow-me cards for negative numbers.

Another nice set of follow-me cards for negative numbers.

In this video tutorial we take a look at the third of Autograph's wonderful Extras pages - Trigonometry. Ideal for GCSE and A Level. The 39th in Mr Barton's Autograph Video tutorial series.Here we see where the graphs each of the trigonometric ratios comes from using the unit circle, and observe the effect on the graphs where we manipulate some constants. 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 graphing quadratic equations. Ideal for KS3 and GCSE maths lessons. The 43rd in Mr Barton's Autograph Video tutorial series. We are going to be looking at graphing on Autograph for the next few weeks, and what better way to start than by looking at some of the different ways we can represent quadratic equations graphically. This includes tables of values, factorising, completing the square and equations from three points. Clicking on the web-link you can see all the videos in this series.

The 27th in Mr Barton's Autograph Video tutorial series. Following on from the last couple of weeks where we have looked at straight line graphs, this time we take a look at Autograph's excellent Gradient Function. We see how useful it can be for studying straight lines, and as a way of introducing older students to the joys of differentiation and calculus. 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 2nd in Mr Barton’s Gapminder World Video series. Here we look at how the world has developed over the last two hundred years by focusing on the relationship between a country’s life expectancy and the average income of the country’s inhabitants. For the analysis we look specifically on three countries: China, Rwanda and the UK. 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 7th in Mr Barton's Gapminder World Video series. Which country in the world is the highest emitter of C02 per person and how has this changed over time? As ever, there is only one way to find out and you might just be surprised at the results! 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 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.