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When the formula survives but the explanation for it does not: how prospective teachers justify the formula for the area of a rectangle with rational sides

Crossref DOI link: https://doi.org/10.1007/s10649-025-10441-w

Published Online: 2025-11-25

Published Print: 2026-03

Update policy: https://doi.org/10.1007/springer_crossmark_policy

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