At the end of this unit
most pupils will: understand and be able to describe the rules that govern the operation of models such as a school tuck shop; construct and manipulate a spreadsheet model using formulae; explore patterns and relationships; predict consequences of decisions
some pupils will not have made so much progress and will: understand that rules govern the behaviour of models; test the behaviour of simple spreadsheet models; solve problems
some pupils will have progressed further and will: refine and extend a spreadsheet model, varying the rules, based on the results of test runs
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