Properties of Shape - Angles around a Point - Presentation

The Properties of Shape module introduces Year 6 students to the concept of calculating angles around a point. The lesson begins with a review of basic angle knowledge, such as the degrees in a right angle and on a straight line, and then challenges students to predict the total degrees around a point. To solidify their understanding, the students engage in activities that involve completing sentences to express the relationship between fractions of a turn and the corresponding angle in degrees. For instance, they learn that a quarter turn is equivalent to one right angle or 90 degrees, while a full turn equals four right angles or 360 degrees. These exercises are designed to help students grasp the fundamental principles of angles and their measurements.

Subsequent activities require students to apply their knowledge by calculating missing angles around a point. They are presented with diagrams showing various angles and are tasked with finding the unknown values. The lesson plan includes reasoning exercises where students write sentences about given pictures to describe the angles depicted, and independent work that challenges them to calculate missing angles based on the information provided. Throughout the lesson, students are encouraged to discuss and consider different strategies for calculating angles, such as whether to add them together or subtract them individually, and to decide on the most efficient method, be it mental arithmetic or a written approach.