NetPad: An online DGS for mathematics education

NetPad is an online dynamic geometry software system designed for mathematics education. It is a Web-based application which can run on various terminals by browsers developed by HTML5. The system not only includes intelligent drawing, dynamic geometry, geometric transformations, animations, measurements, but also provides an open platform to share works and explore mathematics problems. In the paper, we describe the features of NetPad and show how it works in concrete scenario. Through geometric drawing experiments, we demonstrate the simplicity, effectiveness, and efficiency of NetPad.