Why do this problem?
This is quite a
fun
activity to do both numerically and practically using something
like multilink to represent the tables. It gives an opportunity for
pupils to explore a real situation and see the mathematics
contained in it, and what can be investigated further.
Possible approach
Pupils should be encouraged to choose what practical bits and
pieces might help them to find solutions. The solutions would
probably be best recorded somehow. Again, pupils should be
encouraged to find good ways of recording which suit
them. Some might draw pictures, some may use sketches
and some may just use numbers. (Some examples can be
found on the sheet linked to the extension below.)
In a plenary, as well as focusing on solutions, you could draw
attention to the different ways children have used to record their
work.
Key questions
What do you see here?
How are you getting to your answer?
Possible extension
See
this
sheet for suggestions.
Possible support
Using some resources to show the situations practically would
help some pupils.