A diver is used to illustrate the concept of a negative number scale. The surface of the diver's swimming pool is set to 0 on the measuring scale. As he completes his dive, he travels from plus 10 metres to minus 6 metres and back to 0.
- This clip is from:
- First broadcast:
- 14 September 2007
As children become confident with negative integers, they could order temperatures of different places including those with temperatures below zero such as the Arctic circle and Russia over winter. Pupils may be challenged to identify the difference in temperature between countries. Pupils could order measurements above and below sea level. Fun games in an open space could include pupils using dice rolls to determine how many steps they jump forwards or backward over zero.