课程改革以来,大部分的教师非常注重课堂教学情境创设、探索新知、课堂互动的有效性。但是,却没有关注习题的设计,忽视了练习这一环节的有效。有效练习是高效小学数学课堂的催化剂,借助多媒体,优化小学数学练习设计。 Since the curriculum reform, most teachers have placed great emphasis on the creation of classroom teaching situations, exploring the effectiveness of new knowledge and class interaction. However, they did not pay attention to the design of the exercises and neglected the effectiveness of the exercises. Effective practice is a catalyst for efficient primary mathematics classrooms, with the help of multimedia to optimize primary school mathematics practice design.