Objectives
The aim of this activity is to build student understanding through intuition, courtesy of a series of introductory videos and a powerful interactive TI-Nspire file.
Vocabulary
- Transformation
- Translation
- Dilation
- Rotation
- Vector
- Matrix
- Determinant
About the Lesson
Evidence suggests that students struggle to understand this topic. This activity is designed to avoiding confusion associated with wire-frames and algebra in preference to a very visual and numeric approach. Students build understanding of how the cartesian plane is transformed using 'vectors'. Students can manipulate these vectors and observe how points on the plane are transformed accordingly. The vectors are represented using matrices which are then used to check the results of the transformations and intuitively compute inverse transformations.