课改让我们的课堂充满生命力,同时也带给我们很多思考。尤其是课改以来,课本上的新授内容被我们一次次的研究、实践、反思,再研究、再实践、再反思……但是一到新授课后的“练习课”上,课堂一下子就不那么热闹了,孩子们也觉得枯燥无味,没有多少兴趣。究其原因,是教师没有很好地把握练习课的本质与功能,教材研读不到位,导致练习的目标定位不准确,练习组织形式与设计欠缺新颖与多样化。笔者结合《平行四边形面积计算训练》一课, Curriculum changes make our classroom full of vitality, but also give us a lot of thinking. Especially since the curriculum reform, the new content on the textbook has been studied, practiced, reconsidered, re-researched, re-practiced, and then re-examined again and again. However, once the new lectures have been held on the “Practice Class” Children are not so lively, children also feel dull, not much interest. The reason is that the teacher did not grasp the nature and function of the practice class well, and the teaching materials were not well studied. As a result, the orientation of the practice was inaccurate, and the organization and design of practice were lacking in novelness and diversification. The author combines “parallelogram area training calculation” a lesson,