to build on students' knowledge of triangle and develop students' reasoning with properties of different classes of triangles to develop students' language related to different triangles to engage ...

Understanding different types of angles and that angles in a triangle sum to 180° can be helpful when classifying a triangle. Recognising line symmetry and rotational symmetry will also help.

It comes in different forms like puzzles ... For example, let's say you need to count how many triangles are in a picture. To ...

Big Idea – We can describe, measure, and compare spatial relationships. to build on students' knowledge of triangle and develop students' reasoning with properties of different classes of triangles to ...

The hexagon is then folded as shown. The figure can be flexed to show six different faces. If you have made the folds properly, the triangles on one visible face of the hexagon are all numbered 1 ...