在传统的教学中,存在着教学上的“一刀切”的弊端,即不重视学生中存在的差异,结果造成“优生吃不饱,差生吃不了”的现象,这显然不符合当今素质教育对学生的要求,针对这种情况,我校在１９９８年上半年确定了“分层异步集体性教学模式”的课题研究,旨在通过实验,探求一种班级授课 In the traditional teaching, there is a drawback of “one size fits all” in teaching. That is to say, students do not pay attention to the differences that exist. As a result, the phenomenon that “you are not able to eat enough food and poor students can’t eat it” is clearly inconsistent with today’s quality education. In response to the student’s request, in the first half of 1998, our school established a research project on “layered asynchronous collective teaching mode”, aiming to explore a class teaching through experiments.