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Cabañas-Ramírez, Noé Oswaldo; Locia-Espinoza, Edgardo; Morales-Carballo, Armando – International Electronic Journal of Mathematics Education, 2020
This paper shows the results of the epistemological and didactical analysis of the sense of variation of functions. Specifically, on the conceptions of growth and decay in a function that underlie the demonstrations of the theorem that links the sign of "f" with the sense of variation of "f". The epistemological approach…
Descriptors: Mathematical Concepts, Foreign Countries, Secondary School Mathematics, Calculus