Step 7 Objective
Use a calculator efficiently and appropriately to perform complex calculations with numbers of any size, knowing not to round during intermediate steps of a calculation.
- Examples of what pupils should
know and be able to do - Probing questions
- What if pupils find
this a barrier?
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?