Properties of Shape - Introduce Angles - Presentation

The lesson titled "Introduce Angles" is part of the "Properties of Shape" series, aimed at teaching students how to calculate angles. The interactive session begins by challenging students to recall the four different types of angles and to consider the number of angles in a right angle. Initial activities prompt learners to explore basic angle concepts, such as the 90 degrees in a right angle and the 180 degrees found on a straight line. These foundational ideas are reinforced through engaging questions, such as calculating the degrees in multiple right angles and identifying the total degrees on a straight line. The lesson is structured to encourage discussion and reasoning, with a focus on understanding angles as fractions of a full turn and their corresponding degree measurements.

Further activities include using a compass to determine the degrees between compass points, offering a practical application of angle calculation. For example, students are asked to identify the degrees between north and south, both clockwise and anti-clockwise, and between other compass point pairs. The lesson also presents a reasoning challenge where students must decide if there are 90 or 270 degrees between north-west and south-west, with the correct answer depending on the direction of measurement. The session culminates with independent work where students identify angles, complete tables with missing information, and use a compass to calculate degrees in various turns. Through these exercises, learners develop critical thinking skills and a deeper understanding of geometric concepts.