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著名学者郑毓信教授曾说过:“数学教学就是通过数学学习,引导学生学会数学思维,引导学生学会数学思考。”作为一线数学教师,要一直思考一个问题,那就是如何引导学生去思考。只有学生长期沉浸在数学思考之中,才能逐步形成思考的习惯并掌握数学思考的方法。“面积”是小学数学的一个重要概念。“面积的认识”是在学生已经掌握了长方形、正方形的特征以及它们的周长的基础上进行教学的。学生从学习长度到学习面积,是一维空间向二维空间转化的开始,是空间形式“由线到面”的一次飞跃。对学生来说,面积概念的建立非常重要,掌握好这部分内容,不仅有利于发展学生的空间观念,也是他们进一步学习长方形、正方形等平面图形面积计算的重要基础。
The famous scholar Professor Zheng Yuxin once said: “Mathematics teaching is through mathematics learning, guiding students to learn math thinking and guiding students to learn math thinking.” “As front-line math teachers, we must always think about one question, that is, how to guide students to think. Only students immersed in mathematical thinking for a long time, can gradually form the habit of thinking and master mathematical thinking. ”Area “ is an important concept of elementary school mathematics. ”Area Recognition “ is based on the students have mastered the characteristics of rectangular, square and their circumference based on teaching. Students from learning length to learning area, is the beginning of a one-dimensional space to two-dimensional space conversion, is a spatial form ”from line to surface " a leap. For students, the establishment of concept of area is very important. Having a good grasp of this part of contents not only helps to develop students’ concept of space, but also serves as an important basis for them to further study the area calculation of plan areas such as rectangles and squares.