Three “Crack The Safe” worksheets: the first tackling “one a line, around a point etc”; the second tackling “parallel lines”: the third tackling “angles in polygons”. These are designed to be used as starters or plenaries and allow students to self-mark as the answers are on the sheet (along with some values that are not answers) - if their answer isn’t on the list of possible answers they need to check their working.

This takes students from fairly straightforward area and perimeter questions (trapeziums, circles etc) through compound shapes and on to cones, frustums and hemispheres including finding the height in terms of the radius for a cone. I have tried to cover all bases with it including density and capacity problems.

The survivors have found some mathematically shaped islands which are zombie free. Find the area and perimeter of the islands to see how many people can live on them and how much fencing is needed to keep zombies out. Rectangles, triangle, parallelogram, trapezium, circle and compound shapes involved.

More cheesy jokes for students to discover using their mathematical skills; these are a nice plenary, starter or main activity offering something different from exercises from books. The jokes, whilst terrible, only make them keener to discover the punchline oddly.

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.

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

This is designed to lead students through solving quadratic equations by completing the square from quite basic to difficult. The activity is also there to encourage discussion in class and helps them get into good habits regarding setting their solutions out.

There are eight matchings here: 4 surface area and 4 volume. They get increasingly difficult moving through cubes/cuboids to prisms to cones, cylinders, pyramids and spheres. These are designed to be used as starters or plenaries but you can use them for a lesson main activity, totally up to you.

Calculate how much each of these people need in each case. It is essentially rounding to the nearest 10, 100 and 1000.

All sorts of calculus issues for Erica here! She really needs your (your class') help to correct her work and explain where she's gone wrong. There are common mistakes here for student to find and discuss in class.

Eight matching activities that encourage discussion in class involving substituting into functions, inverses and composite functions. These would work as a starter/plenary or as a revision lesson on function notation.

Answer the questions and find my destination each time.

Erica is struggling whilst differentiating trigonometric functions, using the product, chain and quotient rules and parametric equations. She is desperate - please help her! Designed for students to demonstrate understanding and to encourage discussion.

Five slides each containing five problems which have either been answered correctly or incorrectly; students decide and justify their answer. This is designed to encourage discussion in class. Topics include simplifying ratio, sharing in a given given, simple proportion, algebraic proportion etc.

New timetable, low ability class and I needed some function machines.

Arrange equivalent fractions, decimals and percentages into 'family' photos. I have done the smartboard file to show on the board and drag the fractions etc into the right frame if you like.

Powers calculations to get correct so that the student can defuse the bomb successfully. This is based upon squares and cubes but ventures into other powers of 2 and 10.

Two fish jokes to discover: one on reverse percentages (finding an oroginal amount) and one on repeated percentage change (compound interest etc). These work nicely in the classroom, in online lessons and as homework tasks. Students are reassured when words start to appear allowing the teacher to help those who require it.

A shopkeeper has dropped some boxes of Easter eggs and spilled the contents. Can you help him work oou how many of each sweet goes in the large and small eggs?

How many Christmas lights will be needed to make this house festive?