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These resources have been reviewed and selected by STEM Learning’s team of education specialists for factual accuracy and relevance to teaching STEM subjects in UK schools.

Stacks

In this Nuffield interactive activity students are asked to explore, analyse and describe the patterns generated by moving counters between two stacks according to a fixed rule, always doubling the size of the smaller stack.

The key processes developed by this activity include:

*Representing - identifying which variables and other mathematical aspects to focus on and devising appropriate forms of representation.

*Analysing - working systematically and forming conjectures about relationships.

*Interpreting and evaluating - exploring, verifying, justifying patterns and generalisations.

*Communicating and reflecting - describing decisions, conclusions and reasoning clearly.

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