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教学小学数学第六册“长方形和正方形的面积”这个单元,首先要学生理解和掌握“面积”、“面积单位”等概念。概念是思维的基础,正确地理解和掌握概念,才能发展思维,提高学生的能力。给学生建立这些概念,我采取的步骤是:第一步认识“面”;第二步理解和掌握“面积”的意义;第三步认识“面积单位”;第四步弄清长度单位与面积单位两个概念间的区别和联系。教学的具体安排是:
Teaching elementary school mathematics sixth volume “rectangular and square area” of this unit, we must first students to understand and grasp the “area”, “area unit” and other concepts. Concept is the basis of thinking, to correctly understand and grasp the concept, to develop thinking, improve students' abilities. To establish these concepts for students, I take the steps are: first step to understand “surface”; second step to understand and grasp the meaning of “area”; the third step to know “area unit”; the fourth step to clarify the length of units and area Differences and relations between two concepts of units. Specific teaching arrangements are: