Properties of Shape - Calculate Lengths and Angles in Shapes - Presentation

In a series of engaging slides, students are invited to explore the properties of shape, with a particular focus on calculating lengths and angles within various shapes. The lesson commences with a review of fundamental concepts such as identifying a right angle and understanding the meaning of 'parallel'. This sets the stage for a deeper investigation into the geometry of shapes. The first activity prompts students to observe and compare squares and rectangles, encouraging them to discern similarities and differences. This not only reinforces their understanding of these shapes but also prepares them for the more complex tasks ahead.

Subsequent activities delve into the practical application of geometry, challenging students to calculate the angles within different shapes. They are presented with diagrams where they must determine the size of various angles, fostering their analytical skills. The lesson further extends into reasoning exercises where students are asked to critique and correct the geometrical reasoning of fictional peers, such as Rosie, who mistakenly equates the angles of a divided square. Through this, students learn to articulate their understanding and correct misconceptions. The lesson concludes with independent work, where students apply their knowledge to new problems, and a discussion section that encourages them to articulate their understanding of the properties of rectangles, squares, and the angles formed when these shapes are altered.