Examples of what pupils should know and be able to do
Probing questions
Give me some examples of numbers that you find easy to convert to standard form.
Give me some examples of numbers that are hard to convert.
What makes them hard?
What strategies do you use?
Where might you meet numbers written in standard form?
When is standard form useful?
What if pupils find this a barrier?
Revisit work on multiplying and dividing decimals by 0.01, 0.1, 10, 100 and 1000 (Step 4 and Step 6).
Explore how very large and very small numbers are shown on scientific calculators.
Practise entering and interpreting numbers in standard form on a scientific calculator.
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