This study aims to describe and examine the effect of GeoGebra-assisted discovery learning on students' mathematical reasoning achievement in 3D geometry lessons. A Quasi-experimental research design with a post-test-only control group was used to conduct this study. This study involved 108 twelfth-grade students from a public senior high school…

In schools, learning spatial geometry is usually dependent upon a student's ability to visualize three dimensional geometric configurations from two dimensional drawings. Such a process, however, often creates visual obstacles which are unique to spatial geometry. Useful software programs which realistically depict three dimensional geometric…

Many teachers and people in educational institutions consider it necessary to prepare children for living in a computerized society. The Internet offers an incredible number of opportunities for teachers. The Web offer of e-learning open source platforms reached an impressive configuration. In this article, we present an educational software for…