Why do this
problem?
This problem would be useful when the group are looking at
balancing weights and using grams and kilos. It requires some clear
thinking and some calculation but should not take long to do.
Key questions
Which weighs more - the apple or the weights?
How many weights are there? So how will you find out how heavy
one weight is?
Possible extension
Learners could work out similar problems when there are five
weights rather than four.
Possible support
All learners will benefit from using real scales to
weight items before tackling this problem, so what is involved
becomes clearer.