Students learn how to find the perimeter and area of various 2D shapes including triangles, quadrilaterals, compound shapes and circles. Throughout the topic links are made to algebraic reasoning and estimation. This topic takes place in Term 4 of Year 9 and links to arc length and area of sectors later on.
know and apply formulae to calculate:
calculate the perimeters of 2D shapes, including composite shapes;
Connecting simultaneous equations to density, volume, surface area and rearranging formula.
How to teach modelling direct proportion.
How to teach plotting and interpreting histograms with unequal class widths.