The world of geometry in the classroom: Virtual or real?
Man‐Keung Siu · The HKU Scholars Hub (University of Hong Kong) · 2009
Despite the occurrence of the word “virtual” in the title, this is not a lecture on DGE (dynamic geometry environment), albeit I may have occasion to touch on that at some point. This lecture discusses the significance and the meaning of studying geometry in school, the content and evolution of the subject, in particular, attempts to design in the classroom a “world of geometry” that bridges the virtual (abstract) world and the real (concrete) world. It is expected that in this way, students will feel more at home instead of being alienated from the subject.