Matching triangles
Can you sort these triangles into three different families and explain how you did it?
Let's investigate triangles
Vincent and Tara are making triangles with the class construction set. They have a pile of strips of different lengths. How many different triangles can they make?
Sorting logic blocks
This activity focuses on similarities and differences between shapes.
Transformations on a pegboard
How would you move the bands on the pegboard to alter these shapes?
Stringy quads
This practical problem challenges you to make quadrilaterals with a loop of string. You'll need some friends to help!
Stick images
This task requires learners to explain and help others, asking and answering questions.
Geometric thinking - teacher articles
More activities with 2-d shape for younger children, and 3-d shapes for older.
Repeating patterns
Mrs Trimmer's string
Can you help the children in Mrs Trimmer's class make different shapes out of a loop of string?
Triangle animals
Animated triangles
Triangle edges
Cutting corners
Egyptian rope
The ancient Egyptians were said to make right-angled triangles using a rope with twelve equal sections divided by knots. What other triangles could you make if you had a rope like this?
Overlapping again
What shape is the overlap when you slide one of these shapes half way across another? Can you picture it in your head? Use the interactivity to check your visualisation.
Quadrilaterals
How many DIFFERENT quadrilaterals can be made by joining the dots on the 8-point circle?
Triangle pin-down
What shape?
This task develops spatial reasoning skills. By framing and asking questions a member of the team has to find out what mathematical object they have chosen.
