An angle on geometry : an introduction to geometry, angles, triangles, circles and other 2D shapes / written by Jane Bourke ; illustrated by Melinda Parker
Provides sequential activities for ages 10+ in the area of geometry and spatial mathematics. Covers major learning areas such as identifying different types of angles, using a protractor to measure angles, using known rules to calculate the size of angles and constructing angles using either a compass or a protractor. Also covers a wide range of 2D objects, such as the angles of scalene, isosceles and equilateral triangles, parallel and intersecting lines and angles in a circle, and the mathematics of circles
