练习课和新授课、复习课并称为小学数学的三大课型。但是长期以来,各种教学研究、竞赛评比总是热衷于新授课的研究;只有在临近期末时才因为教学进度的原因,不得不对复习课有所触及;而对于练习课,教师们更是缺少重视,随意性强,从来不肯让听课者一睹庐山真面目。其实,练习是使学生掌握知识,形成技能,发展数学思考,获得基本活动经验的重要手段。练习课在小学数学教 Practice classes and new lectures, review classes and called the three primary school mathematics class. However, for a long time, all kinds of teaching research and contest competitions are always keen on the research of new lectures. Only because of the progress of teaching is approaching the end of the period, they have to have access to the revising classes. But for practice classes, teachers are even more lacking Emphasis, randomness, never refused to allow participants to see the true colors of Lushan. In fact, practice is an important means for students to master knowledge, form skills, develop mathematical thinking and gain basic experience. Practice lesson taught in elementary mathematics