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学完一章后,应进行复习,除了让学生把所学知识系统化、条理化外,还应培养学生运用这些知识解决问题的能力。以一题多用渗透到教学中去,将使学生运用知识的能力收到应有的效果。下面以高中立体几何复习参考题一中的14题为例,说明一题多用,它是培养学生运用知识能力的有效施措。题目:把长、宽各为4、3的长方形ABCD沿对角线AC折成直角二面角。求顶点B和D的距离。
After completing a chapter, it should be reviewed. Apart from allowing students to systematize and organize the knowledge learned, students should also be trained to use this knowledge to solve problems. The use of more than one topic to infiltrate the teaching will enable students to use their knowledge to receive the desired results. In the following, the 14 questions in the reference question 1 of the high school three-dimensional geometry review will be used as an example to illustrate the multi-purpose use of a topic. It is an effective measure to develop students’ ability to use knowledge. Title: The rectangular ABCDs with lengths and widths of 4 and 3 are each folded into diagonal dihedral angles along the diagonal line AC. Find the distance between vertices B and D.