1引言在常规教学中,强调的是面向全体学生.在选择教学内容、授课方式和学生探究模式上,考虑得更多的是让大部分学生都能学有所得.尤其在大班上课的时候,我们很难照顾到每一位学生的个体差异.学习能力较强的学生时常会感觉吃不饱,而学习能力较弱的学生又会感觉跟不上.如何解决这样的矛盾,相信是每位一线教师都在思考的问题. 1 Introduction In conventional teaching, the emphasis is on all students .In the choice of teaching content, teaching methods and student inquiry mode, consider more to make most students can learn from income.Especially in the class class time, It is difficult for us to take care of the individual differences of each student.Students with strong learning ability often feel hungry and students with weaker learning ability can not keep up with each other.It is believed that every contradiction Front-line teachers are thinking about the issue.