Examples of what pupils should know and be able to do
Pupils need to able to use the constant and sign change keys, function keys for powers, roots and fractions.
Probing questions
Show me some calculations that are made easier with the sign-change key.
How might you do the same calculations differently on the calculator?
Choose a calculation that you find difficult on a calculator. What makes it difficult?
How could I use a calculator to convert 1000 minutes into hours and minutes?
To work out 11 hours 25 minutes + 2 hours 57 minutes, using a calculator, what is wrong with typing in 11.25 + 2.57?
If I want to carry out a calculation that has a number of steps, using a calculator, why can't I round in the middle to make it simpler?
What if pupils find this a barrier?
- Securing level 5 in mathematics Year 9 intervention Lesson 9N3.2 - Acrobat pdf document (44Kb) is a useful for pupils that are having difficulty.
- Teaching mental calculation strategies to L5 pp. 45-54 - Acrobat pdf document (67Kb) includes some helpful guidance.
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