Students learn how to round a number to a given power of ten, decimal place and significant figure. They use this knowledge to estimate solutions by rounding and finding the limits of accuracy of rounded numbers. This topic takes place in Term 3 of Year 10 and follows properties of number.
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.