The Geometer's Sketchpad And Plane Geometry Theorem Teaching's Practice Investigation

Nowadays, our middle-school students are still studying the oldPlane Geometry which Euclid founded 300BC. and puzzled by it. Consequently Geometry is emphases in the process of curriculum and teaching innovating. Experiment condition that The Geometer' s Sketchpad provided adapts to learning medium of constructivism. Based on constructivism the Geometer' s Sketchpad and Plane Geometry Theorem teaching' practice investigation are flourishing more and more.The paper comprises three parts. The first part reviewed and prospected Geometry education innovation in the whole world, in order to prepare for the behind. The second part summed up two theory foundations of the paper: (1) material foundation-The Geometer' s Sketchpad ,(2) theoretic foundation -Constructivism learning theory . The last one ,the core of the paper ,illustrated the Geometer' s Sketchpad in conformity to Plane Geometry Theorem teaching . By expounding the disadvantage analysis of traditional theory teaching of our county ,the author stated that the key to solving the problem lies in the theory' formative process in emphasis and let students really comprehend the theory. Under direction of the constructivism and The Geometer ' s Sketchpad ,the author offered two patterns that one is demonstration ,the other is exploration. From teaching policy, teaching facilities, teaching program, appliance type ,the paper did deep exploration in the two models. Through the experience of theory and practice, correspondingly, the author gave two teaching parts which are designed according to the two patterns. In the end, the author mentioned the following education principle. Only in this way, can learning ability of students be improved greatly.The American famous educationist and Psychologist of the time , Robert Mills Gagne said , "Designing Instruction for Learning!" The models for assisting Plane Geometry theorem teaching paid more attention to it and in teaching through offering effluent resource of research to students , let them learning Plane Geometry theorem byobserving , exploring ,supposing ,proving by oneself and finally promote high learning quality.