Powers of 10
In this activity, pupils first watch the short film, ‘Powers of 10’. This then forms the basis for whole group discussion about powers of 10 and relative size.

Year 9 and 10 objectives covered include:
  • Extend knowledge of integer powers of 10.
  • Express numbers in standard index form, both in conventional notation and on a calculator display.
  • Convert between ordinary and standard index form representations.
This activity will help pupils to get a better ‘feel’ for very large and very small numbers and why we need to use standard form in these cases. It also helps them to understand the effect of multiplying and dividing by 10.

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