义务教育小学数学大纲明确指出.“培养学生的计算能力,要重视基本的口算训练.口算既是笔算、估算和简便运算的基础,也是计算能力的组成部分.要引导学生在理解的基础上掌握口算方法,坚持经常练习,逐步达到熟练.”为了培养学生的口算兴趣,提高口算能力,我根据教材的编写特点,在试验教学中,重视了以下几方面: Compulsory education primary school mathematics outline clearly pointed out: “Training students' computing ability, we must attach importance to the basic training of port arithmetic. Mouth calculation is not only the basis for calculation, estimation and simple operation, but also an integral part of the computing power to guide students to understand the basis of control Methods, adhere to regular practice, and gradually achieve proficiency. ”In order to cultivate students' interest in oral arithmetic, improve the ability to calculate, I based on the teaching of compilation characteristics, in experimental teaching, the importance of the following aspects: