I made this Powerpoint presentation to show clearly how the interior angles of any polygon are calculated by dividing each polygon into triangles. My pupils already know that the angle sum of a triangle is 180 degrees.

The UK went metric some years ago but not everyone has had the memo! Distances are still measured in miles, market sellers sell their fruit and veg by the lb and most people measure their weight in stones - all very confusing for children who learn about measurement from an early age in school. This PowerPoint explains the history of some of the ancient measures as well as a look at their metric equivalents.

A fun PowerPoint presentation, complete with some animation and sound effects, to introduce pupils to the concept of metric weights and measures. It is suitable for KS2 pupils.

A PowerPoint with very clear slides that is all you need to take your pupils through the process of enlargement. The concept of scale factor and the centre of enlargement is explained one step at a time. A follow-up worksheet with answers will consolidate the concept.

Finding surface area is simpler if a net is drawn, allowing the dimensions of each face of the 3-D shape to be seen clearly. This PowerPoint, with its accompanying worksheet, takes the pupils through the surface area of a cube, a cuboid, a triangular prism and a cylinder.

A worksheet to consolidate line and rotational symmetry.

A simple yet effective PowerPoint which takes the pupils through volume of a cuboid step by step. Suitable for Upper KS2 and Lower KS3.

A clear and effective explanation to show pupils how to round off a number to one or two decimal places. Using simple graphics and practical repetition, every pupil will be able to access this important concept. The author is well known for easy to understand, eye-catching presentations. The PowerPoint is supported by two worksheets.

This starter appeals to all children as it offers a challenge to every ability. A funny character appears on the screen with each section of his body containing a number. The pupils chose a number, such as 10, and make up an interesting way to reach it. Less able children might suggest that 1 + 9 = 10, another child might suggest that 5 x 2 = 10 while a more able child might suggest that 10 = the square root of 100! The teacher selects a child to tap the smartboard and, lo and behold, the body part disappears! This starter is open-ended which means that every child is fully engaged in the process.

Your pupils will never again confuse alternate angles with corresponding angles! This vibrant PowerPoint takes each angle property and illustrates it clearly and vividly, allowing the student sufficient time to absorb and consolidate a tricky concept. Also included are adjacent angles on a straight line, co-interior and co-exterior angles.

Pupils find area and perimeter quite tricky. I made this PowerPoint to explain clearly and simply how to calculate area of rectangles, triangles and compound shapes. The use of formula is described once the children have a clear understanding of the concept of area.

An excellent introduction to Bearings. Each slide is easy to follow and the pupil is taken through a series of simple steps that enable him to master the concept of direction using a 360 degree protractor. This is another stunning presentation from a teacher who understands why students get stuck.

An excellent introduction demonstrating the use of maths language to write and solve equations. This resource is suitable for upper KS2 and Lower KS3. As expected from this established TES contributor, the graphics are excellent and the step-by-step approach promotes understanding.

A simple fact sheet explaining translation is consolidated by two worksheets with answers. Suitable for Years 5 to 7. The accompanying PowerPoint enhances the explanation sheet and pupils will be able to see clearly how one shape translates onto another.

This well-structured PowerPoint and accompanying worksheet takes pupils through proper and improper fractions and mixed numbers. As has come to be expected from this author, each slide is clear, uncluttered and concise - enabling the children to understand easily what is often a tricky concept to grasp.

Many pupils find it difficult to read scales. This PowerPoint presentation shows exactly what to do in order to read any scale. With clear graphics, it is suitable for KS2 pupils as well as LA KS3 students.

A new resource from a premium contributer illustrating mean, median, mode and range in an entertaining way. A differentiated worksheet supports the PowerPoint presentation.

An entertaining and educational PowerPoint that consolidates the concept of faces, edges and vertices on 3-D shapes by means of quiz-style questions. After this the pupils are shown how to sketch polyhedra. A worksheet accompanies this section. Suitable for upper KS2 and lower KS3.

A PowerPoint that covers plotting coordinates in all four quadrants, drawing straight line graphs from equations and calculating gradients. Every slide is clear and concise enabling your pupils to understand the essentials of this important topic.

Your pupils will never forget how to divide by a fraction after they have watched this clever PowerPoint! The animated graphics reinforce the concept in an original and humorous way and a clever mnemonic consolidates the images. A worksheet with answers is part of the package.