Browsing Institutt for matematiske fag by Author "Valenta, Anita"
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Constraints to a justification of commutativity of multiplication
Strømskag, Heidi; Valenta, Anita (Chapter, 2017)In this paper we investigate a pre-service teacher’s whole-class discussion at Grade 6, where she attempts to justify the general claim that multiplication is commutative in ℕ. Our analysis points at two conditions that ...