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Seeing algebra \dots why pictures work. (English)
Math. Teach. (Derby) 245, 43-44 (2015).
Summary: The author uses visualization to develop the idea of the $n$th term. She offers a novel introduction to the notion of sequences and the $n$th term, stimulated by students’ creative examples from their own experiences ‒ and how the transformation from visual imagery to algebraic notation is can be seen as a natural part of the developing ideas.
Classification: H20 I30
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