数学新课程标准明确指出:“培养学生计算能力,要重视基本的口算训练。”课改之后,由于课堂教学不再是由基本的训练人手,而往往是由一个现实的情境切人,使得学生的计算能力逐步弱化,而学生计算能力的降低,又使得学生分析与思考问题的时间大幅度缩水。很多课堂教学节奏慢,教学目标难以达成,一定程度上在于学生的计算速度慢。计算在小学数学教学中很重要,它是提高学生能力的需要,不论是现在的在校学习,还是将来的 The new mathematics curriculum standard clearly states: “To cultivate students’ computing abilities, we should pay attention to the basic training of oral arithmetic.” After the curriculum reform, because classroom teaching is no longer a basic training manpower, it is often cut by a realistic situation, Making students gradually reduce the computing power, and reduce the computing power of students, but also makes students analyze and think time drastically shrinking. Many classroom teaching slow pace, difficult to achieve teaching goals, to a certain extent, is the student’s calculation speed is slow. Computation is important in primary school mathematics teaching, it is the need to improve students’ abilities, whether they are in school or in the future