课堂教学实质上在于学生能够学到什么，在于学生是否会学．学生要学好，首先要有求知的欲望，为了充分调动学生学习的积极性，甚至成为苛刻的求知者，就要求教师在教学中应该根据每次课不同的教学内容选择最适合的教学方法．当问题可以被分解为几部分或不同的方面时，我们可以 Classroom teaching is essentially what students can learn is whether the students will learn. In order to fully mobilize the enthusiasm of students to learn and even become a harsh curiosity, students should learn from their desire to know. Teachers should be required to select the most appropriate teaching method according to the different teaching contents of each lesson in teaching. When the problem can be broken down into several parts or different aspects, we can