Properties of Shape - Regular and Irregular Polygons - Starter

In a Year 5 maths lesson, part of the Summer Term's Week 7 Day 3 curriculum, students are introduced to the properties of shape, focusing on regular and irregular polygons. The lesson begins with a 'Fluent in Four' revision segment, where students warm up their mathematical skills by solving multiplication problems such as 7 x 4 and more complex equations involving variables. Additionally, they are tasked with understanding time concepts, like the duration from 8 a.m. to 8 p.m. The main activity of the lesson involves calculating the size of angles within various shapes, helping students to visualise and understand the geometric properties of polygons.

The lesson also includes exercises that require students to explain the process of exchanging in calculations. One such example involves subtracting large numbers, where they must articulate why and how one ten is exchanged for ten ones to facilitate subtraction. This reinforces their understanding of place value and the mechanics of subtraction. Moreover, students complete sentences related to fractions, determining the total number of fifths and converting them into wholes and remaining fifths. This part of the lesson ensures that students are not only practicing their calculation skills but also their comprehension and ability to articulate mathematical processes clearly.