《义务教育数学课程标准》指出,在三个学段都要加强估算,估算可以发展学生对数的认识,并对数感的培养具有重要的意义,同时估算也具有重要的实用价值,因为有时我们解决问题只需要估算结果。在教学中,我认为可以从以下两方面来培养、提高学生的估算能力。一、结合具体情境,让学生理解估算的实用价值提高学生对估算活动的兴趣如第五册课本58页的第5题,学生通过估计康全药店买药买1盒送1瓶,每盒8瓶要72元,买1瓶 “Compulsory education mathematics curriculum standards” pointed out that in all three semesters to strengthen the estimation, estimation can develop students’ awareness of the number, and the sense of the number of sense of great significance, while the estimate also has important practical value, because sometimes We only need to estimate the results of the problem. In teaching, I think it can be from the following two aspects to develop and improve students’ ability to estimate. First, the combination of specific situations, so that students understand the practical value of the estimate to improve students’ interest in the estimation activities, such as the fifth volume of textbooks on page 5 of Question 5, the students estimated Kang Quan pharmacy buy 1 box to buy 1 bottle, 8 per box 72 yuan to buy a bottle