This ladybird is taking a walk round a triangle. Can you see how much he has turned when he gets back to where he started?
Here is a selection of different shapes. Can you work out which ones are triangles, and why?
Can you sketch triangles that fit in the cells in this grid? Which ones are impossible? How do you know?
Use the interactivity to investigate what kinds of triangles can be drawn on peg boards with different numbers of pegs.
The graph below is an oblique coordinate system based on 60 degree angles. It was drawn on isometric paper. What kinds of triangles do these points form?
How would you move the bands on the pegboard to alter these shapes?
Can you find all the different triangles on these peg boards, and find their angles?
Billy's class had a robot called Fred who could draw with chalk held underneath him. What shapes did the pupils make Fred draw?
Are these statements always true, sometimes true or never true?
Creating designs with squares - using the REPEAT command in LOGO. This requires some careful thought on angles