Use of GeoGebra to improve Performance in Geometry

The main purpose of this study was to use GeoGebra in the teaching and learning of Geometry among mathematics education students as well as in-service teachers, using an action research approach. The purposive sampling technique was used to select two public tertiary institutions for the study. The sample size consisted of 150 students comprising 51 from the University of Ghana and 99 from the University of Education, Winneba. Pre- and post- test design, involving teacher-made tests, were used during the experiment to collect data on the samples used. The paired samples t-test and analysis of covariance were used to analyse the scores of tests. The finding showed that there is a statistically significant improvement in the students’ scores and interest in the learning, as well as the teaching of Geometry. Also, the GeoGebra method made the lessons more practical and easier to understand. It is therefore recommended that mathematics teachers should incorporate GeoGebra in the teaching and learning of Geometry.

Keywords GeoGebra; circle theorem; teaching geometry