Abstract
Preparing students for proof type geometry problem solving has become a key issue for
mathematics educators. Prevailing instructional strategies have been shown to be
inappropriate to address the complexities of deductive geometry. In this report, we propose
a design of a learning environment to address the above issue. We argue that this model
has a potential to help students to make progress up to van Hiele Level 3 and to acquire
skills required to solving a range of proof type geometry problems.
Madduma Bandara Ekanayake & Christine Brown &
Development of a Web-Based Learning Tool to Enhance Formal Deductive Thinking in Geometry