“引人入胜的教学情境、色彩缤纷的多媒体课件、形色多样的教学手段、目不暇接的教学活动……”是新课程标准实施以来课堂教学追求的“时髦品”。然而,热闹非凡的教学表象背后,究竟有多少时间留给孩子们有效地学习、思考呢?一节课下来孩子们有多少收获呢?以《圆柱的表面积和体积的综合练习课》为例,我本着“务实的教学策略,厚实的教学内容,有效的讲评”为理念,为如何上出有实效性的练习课作了较好的诠释。一、情境创设简单合理,有效切入主题 “Enchanting teaching situations, colorful multimedia courseware, a variety of teaching methods, dizzying teaching activities ...... ” is the pursuit of classroom teaching since the implementation of the new curriculum standards “fashion goods ”. However, behind the brisk teaching appearance, how much time does it take for children to effectively learn and think? How much benefit do children have in a lesson? Taking the example of “a comprehensive practice of surface area and volume of a cylinder” I am in a “pragmatic teaching strategy, teaching content, effective comment ” for the idea of ​​how to put on a practical exercise class made a better interpretation. First, create a simple and reasonable situation, effectively cut into the theme