Flat shapes and symmetry

Make a triangle and a square on the pinboard, find the triangles, and draw a line of symmetry.

Guide

This studio is for Year 1. Children draw by tapping dots, so no typing is needed. Read the sentences aloud if your child is not reading yet; the small picture at the top also shows what to do.

The dotty board works like a pinboard and elastic band: each tap joins a new dot to the last one. To finish a shape, tap the first dot again. Undo removes the last dot.

A triangle has three straight sides and three corners, whichever way up it is. A shape that is not closed is not a triangle. A square has four equal sides and four square corners; a rectangle has square corners too, but its sides are not all equal.

A line of symmetry is a fold line: fold the shape along it and the two halves match exactly. The diagonal of a rectangle is not a line of symmetry; folding a paper rectangle shows why.