Learning geometry with conceptual understanding requires the implementation of appropriate methods that actively engage students and support them in becoming autonomous, critical thinkers, and self-directed learners. The purpose of the study was to investigate the effect of GeoGebra-supported learning on grade ten students' conceptual…

The purpose of this study was to examine the effectiveness of an Internet-based behavioral intervention for physical activity (PA) promotion among secondary school students. It was hypothesized that the Internet-based PA promotion program could increase the PA levels of secondary school students. The action research approach together with…