Students learn how about the difference between similar and congruent shapes. Learning progresses from proving congruency and similarity to using different scale factors to calculate an unknown length, area or volume. This unit takes place in Term 2 of Year 10 and follows on from transformations.
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.