Students learn how to find the area of various 2D shapes parallelograms, trapezia, compound shapes and circles. Throughout the topic links are made to algebraic reasoning and estimation. This topic takes place in Term 1 of Year 9 and links to volume and surface area later on.
My experience as a Head of Mathematics going through the deep dive OFSTED inspection.
How to use ratios and proportional reasoning as a model for finding the original amount after a percentage change.
To find the area of compound shapes students need to understand what the word compound means.