This came about after a colleague of mine (a Spurs fan) was moaning about a VAR decision that prevented Spurs from winning a Champions League match. Another colleague (a Brighton fan this time) suggested we check the errors in measurement and this was born. It is a bit of an experiment and I am aware that error is built in to the systems but I thought it was a nice practical use of something we cover in GCSE Maths. There are four scenarios: one tennis, two cricket and one football; questions are quite wordy but need to be to explain the laws of the sports in question.

Four questions, ten possible answers. Students seem to like these and can just get on with them as answers appear on the sheet. This only involves the cosine rule.

Casey is making mistakes again, this time involving difference of two square, rearranging formulae, algebraic fractions and completing the square where the coefficient of x squared is not 1 (and is negative). The aim is to get classes discussing methods and deepening understanding and is aimed at the AQA Further Maths Level 2 Certificate course (Chapter 2).

A music joke, hence the name (a suggestion from a very keen musician that I teach). Answer the questions involving metric measures and reveal the joke; popular in both online and real-time lessons.

Lionel is a decent mathematician but will not write his method down so loses loads of marks in exams etc. Can your students help Lionel write full solutions? Here Lionel tackles averages, pie charts and probability (expected outcomes).

Sequences in contexts you may not expect… three slides each with four mathematical problems involving sequences of increasing difficulty. Couple that with a classic late 80s Belinda Carlisle single and you have a resource that could make a nice starter or plenary. Topics include angles in triangles, Pythagoras, averages and more…

Ten questions of increasing difficulty on sets and Venn diagrams; four possible answers are given for each of which three have common misconceptions that can be discussed in class. These are designed to encourage discussion.

Ten questions of increasing difficulty (you can choose which you do); four hypothetical students have had a go and one has got the answer correct with the other three making common errors. Not only should your class work out who got it correct but as an extension/part of the activity they could work out the misconception for the wrong answers. This involves lines, polygons, quadrilaterals, circle theorems and bearings.

Ten questions of increasing difficulty; four answers given but only one is correct. Can your classes decide who is correct and where those who aren’t correct have got their answers from? This is designed to create discussion over vector problems (and have worked in my classroom). Arrow changed in Q1!

Ten “trees” of increasing difficulty, each with three or four questions also of increasing difficulty. Answers are provided on separate slides and this is designed to allow students to choose their start (and end?) point or to be used as a plenary in each case.

Six trees taking students through simplifying, fractions of an amount, add/subtracting, multiplying/dividing, mixed numbers. Four questions on each getting progressively harder so students can choose the level they start (and finish). Good for starters or plenaries(?).

Includes one and two brackets for expanding, including simplifying as well. I wanted to have 8 trees in total so also put in a completing the square tree. Each tree has 3 or 4 questions of increasing difficulty; students choose their start and finish which should allow you to judge where to pitch your teaching; or you could just use it however you like.

Each tree has three or four questions that get progressively more challenging as you work your way to the top. The idea is for a student to start where they think they’ll be challenged and then move up from that point, but ultimately it can be used however.

This is a powerpoint covering all aspects of sets and venn diagrams required for GCSE. It contains brief notes by way of an explanation, model answers to questions and a question or two for the students to do; all of the questions come with answers that you can display when ready. The slide show comes with a progress grid (regularly referred to in the presentation) so that students can mark their progress from start to finish and pinpoint any areas that may need extra work with a “red/amber/green” system that they fill in; each one is given an approximate grade in both new (2017 onwards) and old system in England. It’s what I use in my lessons before setting tasks from worksheets or text books to practise.

This is a powerpoint covering basic calculus for GCSE. It contains brief notes by way of an explanation, model answers to questions and a question or two for the students to do; all of the questions come with answers that you can display when ready. The slide show comes with a progress grid (regularly referred to in the presentation) so that students can mark their progress from start to finish and pinpoint any areas that may need extra work with a “red/amber/green” system that they fill in; each one is given an approximate grade in both new (2017 onwards) and old system in England. It’s what I use in my lessons before setting tasks from worksheets or text books to practise.

This works its way up from simplifying basic ratios (grade D/3) to real life ratio problems including recipes (grade C/4) onto conversion graphs (C/4) then direct and inverse proportion including their graphs (A/7) through a series of questions on the topic and more practice questions if required. Students click through based upon their ability to answer the questions and should allow them to focus their revision at the correct point.

A revision powerpoint covering as many aspects of data handling as possible, from tally charts (G/1), bar charts (F/1), pie charts (E/2), averages (D/3), stem-and-leaf diagrams (C/4) including quartiles (B/3), grouped data (C/5), scatter graphs (C/5), cumulative frequency (B/6), box-and-whisker plots (B/6) and finally histograms (A/7). There is a progress sheet to print off and test questions to try/practise.

This is a powerpoint covering all types of statistical graph from pictogram to histogram with lots inbetween. It contains brief notes by way of an explanation, model answers to questions and a question or two for the students to do; all of the questions come with answers that you can display when ready. The slide show comes with a progress grid (regularly referred to in the presentation) so that students can mark their progress from start to finish and pinpoint any areas that may need extra work with a “red/amber/green” system that they fill in; each one is given an approximate grade in both new (2017 onwards) and old system in England. It’s what I use in my lessons before setting tasks from worksheets or text books to practise.

This is a powerpoint covering order of operations. It contains brief notes by way of an explanation, model answers to questions and a question or two for the students to do; all of the questions come with answers that you can display when ready. The slide show comes with a progress grid (regularly referred to in the presentation) so that students can mark their progress from start to finish and pinpoint any areas that may need extra work with a “red/amber/green” system that they fill in; each one is given an approximate grade in both new (2017 onwards) and old system in England. It’s what I use in my lessons before setting tasks from worksheets or text books to practise.

A progress sheet to print out, questions on various topics to check knowledge and focus revision in the places where it's needed. This starts at probability scales (G/1), probability of an event (E/2), expected successes, one event OR another, relative frequency, sample space diagrams (all D/3), tree diagrams (C/4), one event and another (B/5), tree diagrams for independent events (B/6), tree diagrams of dependent events (A/7).