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我们发现“空间与图形”领域的操作教得比较累,其中一个原因是操作过程太复杂,操作工具太多。由于操作过程的复杂性,紊乱了学生对概念内涵的把握,严重干扰学生操作的正确性。因此,我认为必须要减轻学生操作中的负担,让学生轻轻松松学习数学操作。现结合实际教学中常见的操作来谈如何减轻学生的操作负担。一、用一把直尺画垂线教学内容:苏教版四年级数学上册教材43页过直线上一点画已知直线的垂线。
One of the reasons we found that the operation in the “space and graphics” area was quite tiring is that the operation is too complicated and there are too many operating tools. Due to the complexity of the operation process, the students disrupted the grasp of the connotation of the concept and seriously disturbed the correct operation of the students. Therefore, I think we must reduce the burden on students’ operation and make it easy for students to learn math. Now combined with the actual operation of teaching to talk about how to reduce the operational burden on students. First, with a ruler to draw a vertical line Teaching content: Sujiao version of the fourth grade mathematics on the textbook page 43 over a straight line known draw a straight line.