# Generalising the pattern rule for visual growth patterns: Actions that support 8 year olds’ thinking

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## Abstract

A common approach used for introducing algebra to young adolescents is an exploration of visual growth patterns and expressing these patterns as functions and algebraic expressions. Past research has indicated that many adolescents experience difficulties with this approach. This paper explores teaching actions and thinking that begins to bridge many of these difficulties at an early age. A teaching experiment was conducted with two classes of students with an average age of eight years and six months. From the results it appears that young students are capable not only of thinking about the relationship between two data sets, but also of expressing this relationship in a very abstract form.

## Keywords

Algebraic thinking Elementary students Visual growth patterns Semiotics Student thinking Teaching actions## Notes

### Acknowledgement

This research is funded by a grant from the Australian Research Council (No. LP0348820)

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