教师在教学中常犯的一个错误是自以为自己讲解得很明白,学生一定能听明白。但主体教育理论认为,由于学生存在个体差异,对于教师讲述的同样的知识也会出现不同的接受效果,更何况教学中还有部分学生在开小差呢。教师通过什么途径了解学生对自己传授的知识的理解程度呢?这就是通过层次性教学。 One of the common mistakes teachers make in teaching is knowing that they understand very well and that students must understand it. However, the theory of subject education holds that due to the individual differences of students, there will be different accepting effects on the same knowledge about teachers, not to mention that there are still some students in the teaching who are getting worse. How do teachers understand how well students understand their own knowledge? This is through hierarchical teaching.