Can you sort these triangles into three different families and explain how you did it?
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?
This interactivity allows you to sort logic blocks by dragging their images.
How would you move the bands on the pegboard to alter these shapes?
This practical problem challenges you to make quadrilaterals with a loop of string. You'll need some friends to help!
This task requires learners to explain and help others, asking and answering questions.
This series of three articles discusses the development of geometric thinking.