所谓中等生，是泛指在优生与差生之间的那些学生，没有确切的内涵和外延，它和优生与差生的边界是模糊的，具有易分化的特点c在中等生身上，同样存在优等生所具有的潜能，甚至在某些方面有超常的优势，只是由于种种原因造成他们在某个时期某种条件下处于中等状态。因此，在教学 The so-called middle students are those students who are generally between the eugenics and poor students. There is no precise connotation and extension. The boundaries between it and the eugenics and poor students are vague and easily differentiated. c In middle school students, there are also excellent students. The potentials they have, even in some respects, have extraordinary advantages. It is only because of various reasons that they are in a medium state under certain conditions for a certain period of time. Therefore, teaching