The Pedagogic Practice And Reflection On Developing The Plausible Mathematics Reasoning Ability Of Junior Middle School Students

Developing the plausible reasoning of pupil is the important goal of mathematics course, which is also the key approach to cultivate innovation spirit and to carry forward the national mathematics discovery. We must think much of it. For making this text, many investigation and experiment regarding to the developing status of plausible reasoning ability of pupil in the eighth and ninth grade have been done. I have tested on about 930 pupils in the eighth and ninth grade, and investigated their performance of inductive reasoning, analogism reasoning. Meanwhile nine teachers and twelve students have been gathered and discussed in different group, experiment which is entitled "If enhancing plausible reasoning teaching helps to develop the plausible reasoning ability" have been carried out on about 70 pupils in two class in the ninth grade, the following conclusion is reached: 1. Pupil's mathematics inductive suppositional ability is in positive relation to the level of their basic knowledge and skill. 2. Information expressive method is added along with the enhancement and consolidation of pupil's knowledge. 3. The plausible reasoning ability of middle school student is slowly developed spontaneously. Reason: no individual section in teaching material for plausible reasoning, no proper position in examinatorial outline, teacher's education concept lag behind. Supposition is almost being forgotten when we are teaching and is ignoring by student. 4. Enhancing plausible reasoning teaching helps to develop the relevant ability. At the back of the text, I put forward some suggestion regarding to the foreside content in the aspect of setting in teaching material and teaching method in classroom, and pointed out some questions waiting for further search.