One Usage of Geogebra in Enhancing Pre-service Mathematics Teachers’ Content Knowledge

Yıl 2015, Cilt: 6 Sayı: 1, 18 - 30, 07.04.2015

Karmelita Pjanic Edin Liđan

https://doi.org/10.16949/turcomat.78085

Cited By: 1

Öz

A wide range of mathematical ideas could be used to develop and justify a formula for calculating the area of trapezoid. Those ideas lead to different strategies for finding out area of trapezoid that we classify in three groups: decomposing, enclosing and transforming strategies. Those strategies should be part of mathematics content knowledge for teaching. In this study we trace a change in structure of mathematics content knowledge of nine pre-service mathematics teachers as a result of using GeoGebra applets that visualize different approaches in finding out the area of trapezoid. We argue that engaging pre-service mathematics teachers to develop and justify formula for calculating the area of trapezoid using GeoGebra applets is a worth task that enhances pre-service mathematics teachers’ content knowledge for teaching. Our experiment confirmed that the use of Geogebra encourage pre-service mathematics teachers to uncover new ideas that lead them towards clearer justifications and easier way of proving formula for area of trapezoid.

Keywords: Area of trapezoid, GeoGebra, content knowledge for teaching

Anahtar Kelimeler

Area of trapezoid, GeoGebra, content knowledge for teaching DOI: 10.16949/turcomat.78085

Kaynakça

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