Helena Rocha

Citation:

Rocha, H. Teachers’ use of the different representations in a context of technology integration. Proceddings of 13th International Congress on Mathematical Education. Hamburg, Germany: ICME, 2016.

Abstract:

This study focus on the different representations provided by graphing calculators, intending to characterize how the teacher uses and integrates them on the process of teaching and learning functions at the secondary level. The methodology adopted is qualitative and interpretative, undertaking two case studies. The main conclusions point to different levels of flexibility in the use of the different representations depending on the teacher, but suggest a strong preference for the graphical and the algebraic representations, a use of the numerical representation based on the graph of the function and a total lack of use of the tabular representation.