Students learn how to draw, measure and identify different types of angles. They use this knowledge to discover various angle properties such as angles on a straight line, about a point, in a triangle and on parallel lines. As learning progress they are challenged to construct polygons and solve problems involving their interior and exterior angles. Angle properties is studied in Term 6, Year 9 of the Foundation GCSE course and follows Properties of 2D shapes.
How to introduce the sin, cos and tan trigonometric identities.
How to teach calculating the original amount after a percentage change.
The importance of the range when comparing comparing datasets.