A right angle = 90 degrees
A straight line = 180 degrees
The 3 angles of a triangle = 180 degrees
A complete turn = 360 degrees.
We will also look at nets of 3D shapes as well as 2D shapes.
Here are some games to get you started:
This site lets you visualise 3D shapes: http://illuminations.nctm.org/ActivityDetail.aspx?ID=70