Finding the Area of Compound Shapes
A good site on finding the area of a shape based on rectangles on a grid. Estimate first and then compare with the actual area of the shape. Good as an IWB demo tool for teaching how to apply the formula to compound shapes based on rectangles.
Sorting 3D Shapes on a Venn Diagram
An activity where you use a Venn diagram to sort a variety of 3D shapes according to their properties, including: whether they are pyramids or prisms, the number of faces, edges and vertices and whether they have a curved surface.
Classifying Triangles by Angles and Sides
A video tutorial from PBS on how to classify triangles according to angle measurements and side lengths. It is likely to appeal to pupils because it is presented by a student.
Cube Nets
See if you can predict which of these nets form into a cube. Make your prediction and then watch the animation to see if you were right.
ITP Fixpoints - Using a Protractor
Create angles using a grid and then measure them using the protractor. Their values can be displayed or hidden. For reflex interior angles the value of the exterior angle is shown.
Cubes
A super tool for demonstrating volume and surface area. There is an option to create your own size of cuboid.
Geometric Solids
A teaching tool, which works well on an interactive whiteboard, which is good for learning about solid shapes and their properties. Explore the number of faces, edges and vertices. There are lesson plans which demonstrate how the tool can be used.
Guardians Defenders of Mathematica
A BBC Bitesize game where you pit your wits and mathematical skills against your enemies with weapons. Mathematical areas covered include: place value, addition and subtraction, multiplication, division, fractions, decimals, algebra and more.
Key Stage 3 Bitesize - Maths
Help is at hand for maths revision for Key Stage 3 Maths SATs. The site has resources for teachers too.
Tessellation Creator
A useful resource for making tessellation patterns using regular polygons. What kind of tessellations can you make out of regular polygons?
