Step 9 Objective
Recognise that measurements given to the nearest whole unit may be inaccurate by up to one half of the unit in either direction.
- Examples of what pupils should
know and be able to do - Probing questions
- What if pupils find
this a barrier?
Probing questions
If the mass of an object is 60 kg to the nearest whole number, why could its mass be more than that of another object that has a mass of 60 kg to the nearest whole number?
Can anything ever be measured exactly?