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概念教学一直是数学教学的重中之重,情境式教学是当下新课程改革背景下最广泛使用的教学方法。如何通过情境创设让枯燥抽象的概念教学变得生动而有趣,一直是作为一线教师的我最感困惑,也是最需摸索的方向。在一次设计《加权平均数》的过程及教学意图的实施过程中,发现用“问题+情境”的串式呈现,利于将数学问题由表及里,由浅入深地一一呈现,这样循序渐进,环环相扣的教学活动,不仅使
Concept teaching has always been the most important part of mathematics teaching. Situational teaching is the most widely used teaching method in the current context of new curriculum reform. How to make boring and abstract concept teaching vivid and interesting through situation creation has always been the most confused and most in need direction as a front-line teacher. During the process of designing “weighted average” and the implementation of teaching intention, we find that the string representation of “problem + situation” is conducive to presenting the mathematical problems from surface to interior and vice versa Step by step, interlocking teaching activities, not only