Introduction

Mathematics, howbeit geometry is seem as a difficult subject to learn by some students, however they must take it, because mathematics is one of the compulsory subjects that students must accomplish in their study. We think that mathematics teachers should be more innovative in their teaching methods. Teachers should consider the use of ICT in their teaching, because use of ICT in geometry can help students’ visualization and help teachers explain geometric shapes and solids more effectively.     There are many kinds of mathematics software, such as GeoGebra, Mathematica, etc. Mathematics software nowadays is easy enough to use and most are really user friendly, so that users do not need special computer skills to use them. Some mathematics software is free which means that users can use the software without needing a license. One of the free mathematics software programs is Geogebra, a kind of software called dynamic geometry software (DGS).

Dynamic geometry software is very helpful for teaching and learning geometry because there are many geometric shapes and tools that can be used to visualize and construct geometrical figure, solids and its properties in a simple way. By learning geometry through dynamic geometry software, the researchers hope that students will be more interested in geometry learning and more engaged in learning activities. This study do not mean to suggest that the traditional method of teaching geometry is not appropriate for students. We did a study to teach geometry through the dynamic geometry software Geogebra and wanted to compare the classroom performance of the students with the lessons they were designed to with the classroom performance of the class in the traditional method.