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Closed but provocative questions: curves enclosing unit area. (English)
Int. J. Math. Educ. Sci. Technol. 46, No. 5, 776-783 (2015).
Summary: This article describes a task leading to work on curve sketching, simultaneous equations and integration to find the area enclosed between two curves. An initial closed question is used to confront students with a provocative answer, which they then explore in a much more open-ended way.
Classification: I50
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