Use a reporting back session after about 15 minutes to encourage pupils using either approach to consider alternatives and to emphasise the need for theoretical explanation and testing of theory. As many pupils as possible should be encouraged to attempt the extension task. They should be encouraged to simplify the situation according to their own rules and to test their predictions through experimentation. These level indicators should be used in accordance with the assessment guidance given on page 16. Level four Works accurately under the direction of the teacher or other pupils.
Records results for one die in a clear and organised way.
Level five Works systematically and accurately. Records experimental results in a clear and organised way. Collects results from at least 20 throws and draws a block graph. Collects and organises experimental data for at least 50 goes and gives experimental probabilities in mathematical terms or makes a grid of all possible outcomes for two dice and gives theoretical probabilities. Level seven Works systematically and accurately with two throws.