Number: approximation, error intervals and calculators – Year 9 maths starters to download as PDF

How to use these Year 9 number starters

First, give yourself about 30 seconds for each question. Then write the answer down before you check it. If an answer is wrong, look at the number: approximation, error intervals and calculators lesson again. After that, move on to the number: approximation, error intervals and calculators worksheet for longer questions.

Finally, repeat these starters a few days later, because regular practice makes the facts automatic. Moreover, all the pages of this chapter work together, so you can move between them at any time. For example, many pupils read the lesson on Monday, practise on Wednesday and test themselves on Friday.