由于我们国家目前大多采用集中办学,导致班级数目众多,虽然大多数学校已经将班级分为几个层次,但这种分层是按照学生总分来分的,总成绩差异不大,但每一学科成绩还是有较大差异,比如生物学课。这就要求老师们在备课和上课过程中实施分层分群递进教学。从而在一定程度上解决学生的个体差异性,使每个人的优势得以发挥,教学的时间、空间、资源不至于浪费。弥补传统教学的不足,达到“异步教学,同步达标”的目的,满足不同 Since most of our countries currently use centralized schooling, the number of classes has resulted in a large number of classes. Although most schools have divided the classes into several levels, this stratification is based on the total score of students, and the difference in total scores is not large, but each Discipline results are still quite different, such as biology lessons. This requires teachers to implement stratified grouping and progressive teaching during lesson preparation and classes. Thus to a certain extent solve the individual differences of students, so that everyone’s advantages can be played, teaching time, space, resources will not be wasted. Make up for the insufficiency of traditional teaching, achieve the goal of “asynchronous teaching, simultaneous compliance ”, meet different requirements