Five slides each with five questions that students must decide whether the given answers are correct or not, explaining their reasoning. There are questions on equivalence, fraction/percentage of an amount, calculations, percentage change etc. These are designed to create discussion in class.

Three questionnaires to correct and design hopefully covering the majority of things that can go wrong. This has no "bells" or "whistles" but just asks the questions I want it to.

Show it for 20 seconds then they have to remember it exactly. I put the picture of me on there so they would concentrate on their reproduction rather than staring around the room, but feel free to change it to a picture of your choice!

There are four "explosions" for students to deal with, each covering different types of algebraic fraction. The first slide involves simple indices and simplifying, the second involves adding and subtracting (find a common denominator), the third has algebraic expressions as denominators and the fourth involves factorising quadratics. These are designed to stop students getting in a rut of doing the same thing over and over again, plus they should (hopefully!) generate good mathematical discussions.

The usual answer the questions then reveal the fish joke. These have always been popular in my classroom, as well as working well online. I know some people have used these as homework tasks too. The benefit of these types of resources is that students will see that it is spelling out words and therefore know they are fine allowing the teacher to help those who need it.

The labels and thermostats on their new costumes have been mixed up so they need to convert Celcius to Fahrenheit and vice versa to see if the suits will withstand the temperatures they produce. It's simple substitution basically.

Three “Crack The Safe” activities on time problems, converting metric units and compound measures (speed and density). 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.

Villains' Vending are having a Grand Sale but the printer has broken. Can you find the sale price of the items required by the villains?

The students need to write a formula for the profit that 3 apps will make, writing them in words and algebra. The extension is to draw a graph of the formulae.

Shade the appropriate areas of the Venn diagrams given the sets listed to reveal the punchline to a joke.

There are six spiders to do: two on reading and writing numbers in standard form, two on multiplying and dividing and two on adding and subtracting. Each is designed to be a bit more difficult than the last with some opportunities for discussion.

Four spiders on sets and two on shading Venn diagrams. Hopefully these will create a little discussion and make students think. A couple of the diagrams now improved.

An old fashioned elf has labelled all the stuff in Santa's larder with imperial units, but being a modern man Santa only really does metric. Can you convert them all please?

Erica's teacher thought she needed more practice on the binomial expansion with negative and fractional indices, including estimating a root using an expansion. She has, as ever, got it all wrong so needs your help. Designed to help students prove their understanding.

This allows students to access different aspects of proportion. This covers direct and inverse proportion and could be used as a discussion exercise.

Four spiders to complete: two involving two linear equations and two involving a linear and a quadratic. This is designed to create discussion and gives students options on how to solve, either by elimination or substitution. If you are feeling adventurous you could even draw the graphs...

This idea is from Craig Barton and is an excellent one (check them out his at website); essentially it is four questions based on the same information. There are four here which use volume, ratio, Pythagoras, bearings, measures, area and perimeter, speed, percentages and bounds as well as other topics. This really should create discussion and a deeper understanding of the topics covered on top of ensuring that students actually read the question. I hope these are worthy! I will be using these as starters or plenaries.

Five topics from C2 - a question on each. The students have 3 options to choose from, then scan the appropriate QR code (which takes them to a song or artist with a number in the title). Once they have all five correct answers they can "defuse the bomb" with the code. All QR codes scan to a song or artist with a number in them so they can't cheat. I have done some worked solutions too.

Describe and complete the transformations for the following potraits from the cast of Toy Story.

Calculate how many villains Captain America has to fight in certain rooms of the three 'House of Horrors', plus the rule rule (nth term) he uses to make this calculation. Ideal for KS3 and GCSE maths students.