Five slides each containing five questions answered either correctly or incorrectly; students decide which and explain why they have decided the way they have. This contains inequalities on number lines, satisfying inequalities, solving, regions and quadratic inequalities. These are designed to create discussion in the classroom.

Use one of the three calculations given to find the answers to the questions and reveal a rather good joke (if you like golf). these are popular with students and ideal for either using in class, online or as a homework in my experience. This could be used at KS3 or KS2 i think.

Three fielders throw a cricket ball from one position to the wicketkeeper. Can you find the equations of their throws?

In these worksheets the various questions use how many songs you can get onto an MP3 player (1Gb = 250 songs) to look at ratio. Leads onto other questions involving fractions and percentages.

Erica is struggling with trigonometric functions this time. these questions invlolve sec, cosec and cot and Erica is struggling. Can your class help explain where she has gone wrong. This allows students to demonstrate understanding and discuss their thinking.

Yet another of these - moving from basics to quadratics and everything inbetween.

This does what it says on the tin basically; a load of right-angled triangles with missing lengths to calculate and reveal the fish joke. These work in class, online or as a homework task and reassure students as they start to spell a word or sentence.

Four “Crack The Safe” activities on ratio and proportion: three on ratio and one on proportion, although the ratio problems sheet has a couple of inverse proportion problems. These contain six questions but ten possible answers meaning that students can self-check their answers (are they in the list of possible answers?) whilst the teacher can help those who require it. I use these as starters and plenaries but that is obviously up to you. The emphasis in the ratio sheets is upon worded questions so discussion may be generated here.

Two distance-time graphs to interpret and find the punchline to a terrible joke; the usual malarky…

Six matchings involving set notation and shading Venn diagrams. Hopefully these will encourage discussion in the classroom and they are designed as starters or plenaries where students, since most of the answers are there, are encouraged to try harder problems than they might normally do.

Six maths "spiders" designed to test whether students can substitute in to formulae correctly. The spiders get increasingly difficult and are designed so that they have to think and possibly discuss their answers rather get on a "substitution treadmill". I know people use these for starters/plenaries and I have used them as tasks in lessons.

I saw a discussion on Twitter (@McGuirea499 I’ve been reminded) with a diagram where students form equations from diagrams and I thought it looked interesting. I have produced three diagrams where students can do the same thing, getting progressively more challenging but allowing students with any degree of understanding of basic algebra the opportunity to contribute (I hope!).

This takes students through the skills required to solve differentiation problems at GCSE and IGCSE level.

I found the cartoon on the first slide on Twitter (I'm sorry, I forget where) and I thought that my students could probably brush up on their Pythagorean triples like Batman. This was the result. The Powerpoint is animated and the Notebook file has screen shades, depending on the software at your disposal and your preference. There is a table of answers on the final slide of both files too.

Scooby and the gang are pursuing various ghosts/monsters on different curves but health and safety have visited Mystery Incorporated and told them the gradients that are safe to drive/slide along. Can you help Velma, Daphne, Fred, Shaggy and Scooby with these curvy conundrums?

I was asked to come up with some Olympic themed lessons so came up with four, each getting increasingly difficult. One was on drawing statistical graphs based upon medals tables, one on a race track (basically area and perimeter), one on speed and one on parabolas. Tuck in if you think they will be of any use.

My intention is to use this as a "first lesson back" task to get students talking and recalling maths facts involving number, algebra, geometry and data. The joke is terrible (it's been all over Twitter this week, which is what pushed me to do this) but they all are for this kind of task. My classes enjoy these; hopefully yours will too.

Four spiders, two with curve and two involving trigonometric functions. These are designed to be used as starters or plenaries but they also work as consolidation activities.

There are 8 slides involving 5 questions on each. Answers are given for each question but students must decide whether those answers are correct. There are also “answer slides” but no explanation intentionally because this should invite discussion. The slides move through Pythagoras, trigonometry in right-angled triangles, whether the triangle is right-angled or not, exact trigonometric values, trigonometry in non-right-angled triangles including some worded problems. As I said before, the whole point of these is to create discussion points in class. Hyperlinks now work; sorry for neglecting this initially!

Clive is doing some homework involving error in measurement and is getting a bit confused. He has made some mistakes that you need to correct and explain to him where he's gone wrong; the homework contains just stating bounds as well as calculations that require thinking more carefully about. This really makes students check their explanations and generates good academic discussion in my experience as well as allowing students to demonstrate the depth of their knowledge.