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1 问题情境的建构“好的开端意味着成功了一半”.建构一个好的问题情境对于研究活动和教学活动的顺利开展,以及数学知识的有效教学,都具有重要的甚至是决定性的意义.因此,问题情境的建构是研究式教学首先要做好的工作.从课例和笔者的体会来看,问题情境的建构要注意下面几个方面.1.1 “关涉数学”的实质性新一轮基础教育数学课程改革倡导“问题情境—建立模
1 Construction of Problem Scenarios ”A good beginning means half of success.“ Constructing a good problem situation has important and even decisive significance for the smooth development of research activities and teaching activities, as well as the effective teaching of mathematics knowledge. Therefore, the construction of problem situations is the first thing that research teaching must do well. From the perspective of class examples and the author’s experience, the construction of problem situations should pay attention to the following aspects. 1.1 The substantial new issues concerning mathematics A round of basic education mathematics curriculum reform advocacy ”problem situation - establishment of model