一道习题有多种解法,是个老问题,也是理科教师在教学实践中经常遇到的问题。尽人皆知,一题多解它牵涉到学生知识面的广度和对本部分知识钻研的深度等。因此,我认为作为教师在课堂上经常精心地设计这方面的例题对学生进行讲解;课后给学生多布置这方面的作业是很有必要的。这样,无疑可使学生从茫茫的题海中解脱出来,达到既弄清基本概念又能提高解题能力的目的。并有效地培养学生创造性地思维以及学会分析问题解决问题的能力。这也是一条减轻理科学生学习负担过重的有效途径之一。下面,着重例举了教科书上几道习题作以介绍。其中一道是力学的,一道是电学的,最后一道是实用电学的。本文对第一道题列了十种解法;第二道题列了三种解法;第三道题列了四种解法。当然还可能有更多的解法,希望大家不断地探索。 There are many kinds of solutions to an exercise. It is an old problem and it is also a problem that science teachers frequently encounter in teaching practice. As everyone knows, a multi-question solution involves the breadth of students’ knowledge and the depth of their knowledge of this section. Therefore, I think that as a teacher in the classroom often carefully designed this example to explain the students; after the lesson to the students to arrange more assignments in this area is very necessary. In this way, students will undoubtedly be freed from the embarrassing questions and achieve the goal of both clarifying basic concepts and improving problem-solving abilities. And effectively cultivate students’ creative thinking and learn to analyze problems and solve problems. This is also an effective way to relieve the oversight of science students. Below, we will give an example of a few exercises in textbooks. One of them is mechanics, one is electricity, and the last is practical electricity. This article lists ten solutions to the first question; the second question lists three solutions; the third question lists four solutions. Of course, there may be more solutions, I hope everyone will continue to explore.