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“因数和倍数”是一节概念课,学生理解起来比较困难。我合理整合教学资源,精心设计教学环节,创设丰富多样的探索活动,使原本枯燥乏味的概念课灵动起来,处处彰显探索的乐趣、智慧的引领,孩子们在数学思想的浸润下感受着数学的本质。一、精心设计活动,在活动中建构概念为了引导学生建立因数的概念,我让学生把8个同样大小的正方形拼成长方形,思考有几种拼法?可以得到哪些乘法算式?通过算式和图形的巧妙结合,为学生展示了“因数”这个概念的来源,使学生明白了
“Factor and multiple ” is a concept class, students understand more difficult. I reasonably integrate teaching resources, carefully design teaching sessions, create a variety of exploration activities, so that the original concept of boring training together, always highlight the fun of exploration, the wisdom of leading children under the infiltration of mathematics feeling math Nature. First, the well-designed activities, activities in the construction of the concept In order to guide students to establish the concept of factors, I let students put eight squares of the same size into a rectangle, think of several spellings? What can be obtained by multiplication formula? The clever combination of the students showed the “factor” the source of the concept so that students understand