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.
2D Shape Reveal
An interactive whiteboard resource to help with the teaching and learning of the names and properties of 2D shapes.
Corresponding Angles
A clever manipulative which helps students recognise corresponding angles formed when a transversal crosses parallel lines. Used in full screen this is great on an interactive whiteboard.
Basic Angles
An angle activity with an online protractor. This is a flexible manipulative for teaching about angles which is excellent on an interactive whiteboard. There is a video tutorial explaining its use.
Adding Adjacent Angles
Work out the missing adjacent angles on this clever game. You can choose to work with either two or three angles.
Alien Attack
Use your knowledge of angles in this game where you defend the Earth from aliens. You can either estimate the angles or read them from a protractor.
Determining Measures of Angles Formed by Parallel Lines and a Transversal
Use your knowledge of angle pairs to work out the size of the missing angles.
MathTV.com
Short teaching videos that can help you with maths problems. An American site.
Geometry Basics
These videos and activities on the basics if geometry explain what angles are and the difference between a triangle and a quadrilateral. Put your knowledge to the test.
Angles
Activities on acute, obtuse, and alternate angles. They can help you to consolidate your knowledge of angles vocabulary.
