Practice And Theory Research On Integration Of DGS And The Geometry Instruction

The Geometer' s Sketchpad was introduced into china in 1990s, We abbreviate it DGS for its dynamics, for the paper' s concise, we confine technology to computer' s manipulation based on DGS. At present, DGS is a popular mathematics instruction software in our middle school. But its application and research in our country is still unripe. The task primly studies how technology affects geometry instruction.From the direction of psychology and pedagogy circles, this paper studies theoretical basis about the integration of DGS and mathematics instruction, and sum up previous results relative to DGS. On viewing to curriculum reform, we also think about the relation between DGS and geometry characters, and affirm its effect on realizing new ideas. So we can base our exploration into mathes teachers on these arranging related document. We want to know the present teachers' attitude and conscious on technology, and find out the distance between Chinese and foreign research on DGS, so we prove the practical meaning about this task.In our experiment, we importantly investigate into DGS' s effect on students. Two class (included the experimental class and contrasted class ) in middle school are the subjects .Through applying DGS into geometry instruction, The results shows the significance difference between two classes. The experimental class' scores and attitude is obviously improved. In advanced investigation, we deduced that: DGS can provide plentiful perpetual experience, thus contribute to master cognitive ability, which can form special cognitive strategies. The test function in DGS can induce students self-thinking continually; the dynamic inspection function can develop students' thinking modes.Based on our studies and our country' s conditions, we provide some advice on how to develop the educational value of DGS: the first is to let students understand technology; the second is to change teachers' opinion.This paper' s new ideas lie in the experimental plans and its results. The author founded out the difference in applying and studying between the internal and the external, different instructed way from the old is used into the class, the experimental results solved the problem that why the DGS can improve students learning.