This resource is designed so that the learner is guided through thinking processes to promote reasoning and sense making.
The external tangents to a circle meeting at a point S leads to several conclusions and
this is brought out through the progressive questioning on the left of the screen as well as
hints which are revealed as the user examines the diagram on the right of the screen.
This is a collaborative effort to design interactive dynamic geometry exercises which can scaffold student learning of proofs in plane geometry. Members of the team are : Thong Chee Hing, Woo Huey Ming and Vincent Lew Suggestions are most welcome..
