Geometrical Transformations

This topic applies concepts of isometries (rigid motions) and non-isometries in real-life situations like computer graphics, animation, and design. Learners will use column vectors to describe translations, perform reflections using mirror lines and matrices, perform rotations using construction and matrices, and find centres of rotation. They will also explore enlargements. Understanding transformations develops spatial reasoning and an appreciation of symmetry and congruence. This topic integrates coordinate geometry, matrices, and geometry, and is a common feature in ECZ examination papers testing a student's ability to manipulate shapes in the plane.