笔者最近在以浙教版《数学》八年级下册“6.4梯形(第1课时)”为载体的“同课异构”市区教研活动中发现,我们的课堂教学更多追求课堂中教的设计,并没有把知识的“根”很好地植在学生已有的经验的土地上.课堂教学没能更好地呈现“唤醒”、“激发”、“积累”经验等诸多学习过程,导致学生失去了很多获得数学活动经验的有效途径和方法.基于此,笔者对这节课的教学进行了重新的设计,对学生自身经验及其自主性学习给予更多的关注,引导学生通过自身的独 Recently, I found in the teaching and research activities of urban areas that the Zhejiao edition “Mathematics” the eighth grade “6.4 trapezoid (the first class hour)” as the carrier “heterogeneous ” urban classroom research activities, our classroom teaching more pursuit The teaching design in the classroom did not put the “root” of knowledge well on the land of students’ experience. Classroom teaching did not render “awakening”, “inspiring” better, “Accumulation ” experience and many other learning processes, resulting in the students lost a lot of effective ways and methods of obtaining experience in math activities.Based on this, the author of this class of teaching has been re-designed on the students own experience and autonomy Learn to give more attention to guide students through their own uniqueness