课堂教学是教师完成其“传道”、“授业”、“解惑”任务的主要场所,是学生完成学业,发展智力,丰富情感,形成高尚审美情操的主要阵地。早在300多年前,捷克教育家夸美纽斯就指出:“寻求并找出一种教学方法,使教师可以少教,但是学生可以多学。” Classroom teaching is the main place for teachers to fulfill their tasks of “preaching”, “teaching” and “solving”, and is the main front for students to complete their studies, develop their intelligence, enrich their emotions and form noble sentiments. As early as more than 300 years ago, Cetinius, a Czech educator, pointed out: “Seek out and find a teaching method that allows teachers to teach less, but students can learn more.”