Properties of Shape - Compare and Order Angles - Presentation

In a series of engaging activities designed for understanding the properties of shapes, students delve into the world of angles, learning how to compare and order them. The lesson emphasises the importance of recognising different types of angles, such as acute, obtuse, and right angles. Students begin by discussing the degree measurement of a right angle and how it can be used as a reference point to differentiate between obtuse and acute angles. The practical activities involve identifying the largest angle within various shapes and diagrams, using an angle tester to assist in ordering angles, and engaging in thoughtful discussions about the characteristics of angles.

Further deepening their understanding, students are presented with tasks that require them to sequence angles from largest to smallest and vice versa. They are encouraged to label angles correctly and to use their knowledge of angle sizes to identify and draw larger obtuse and smaller acute angles. The lesson also includes reasoning exercises where students are challenged to identify errors in angle comparisons, such as the misconception that longer sides indicate larger angles. Independent work reinforces the lesson's objectives, with exercises that include drawing clock faces to find angles less than 180 degrees and ordering them accordingly. Throughout the lesson, students are prompted to use tools and strategies, like angle testers and the orientation of angles, to enhance their ability to compare angles effectively.