Case Study in Understanding Concurrencies Related to Ceva’s Theorem Using the Geometer’s Sketchpad

Mathematics Education focuses on three categories namely mathematics, informatics, and mathematics education. Case study done in this paper was a course content of elementary geometry: Concurrencies and Ceva’s Theorem. The purpose of this study is to illustrate the use of the Geometer’s Sketchpad (GSP) in rethinking for teaching and learning geometry for Mathematics Education students. The teaching method is cooperative learning approach through model CEDI (Constructing, Exploring, Discussion, and Informal deduction). By developing dynamic activity worksheets that can be readily modified to meet the objectives of content and needs of individual students it should be possible to greatly increase experience in “ thinking ” at different levels such as visualisation, analysis, and informal deduction. 1