新课程实验教科书为了提高学生的估算意识、估算能力在每一学段都安排了相应的估算教学内容。但教师在进行估算教学时,表现出较多的问题,教师教得困难,学生学得也困难。教师要试着巧用情境,用“算用结合”的思想,探究估算教学的几点教学方法。 New curriculum experimental textbook In order to improve the students’ estimation consciousness, the estimation ability arranges the corresponding estimation teaching content in each session. However, when teachers carry out estimation teaching, they show more problems, teachers are hard to learn and students have difficulty learning. Teachers should try to skillfully use the situation, with “calculation with combination ” thinking, to explore several teaching methods of estimation teaching.