Investigate, with and without digital technologies, angles on a straight line, angles at a point and vertically opposite angles. Use results to find unknown angles
Elaborations
identifying the size of a right angle as 90° and defining acute, obtuse, straight and reflex angles
measuring, estimating and comparing angles in degrees and classifying angles according to their sizes
investigating the use of rotation and symmetry in the diagrammatic representations of kinship relationships of Central and Western Desert people
recognising and using the two alternate conventions for naming angles
