SUMMARY
Using technology for learning geometry has been found to have a positive impact on students’ skills and attitudes. GeoGebra software is effective in encouraging teachers to employ technology as a supporting tool to improve student potential in their learning of mathematics. However, GeoGebra software has not yet been formally introduced into the teaching and learning of mathematics in Rwanda. This research aimed to ascertain Rwandan upper secondary school students’ attitudes when learning geometry with GeoGebra. A total of 84 participants from four schools were purposively sampled and categorized into two quasi-experimental design groups. A group of 44 students was the control group, and 40 students formed an experimental group. Attitude scales were administered to both groups pre and post intervention. Students in the control group were taught geometry in the traditional way, and students in the experimental group studied 3D geometry using GeoGebra software as a supporting tool. To collect data, we used a standardized attitude scale. The results reveal a statistically significant difference between the groups and, therefore, confirm the effectiveness of GeoGebra in improving students' attitudes when learning 3-D geometry. However, a correlation analysis did not find a high correlation between students' performance and attitude. Based on the results, the researchers recommended integrating GeoGebra software at different levels of education in Rwanda, in mathematics curricula generally, and in geometry in particular.https://doi.org/10.26803/ijlter.21.6.17