近几年在各省的高考试题中频频出现估算题,许多考生对这类题目往往觉得无所适从,在解题时枉费了很多宝贵的时间。那么在平时的教学中怎样来培养学生的估算能力呢?又怎样让学生有估算的意识呢?在解题中又怎样来灵活的运用各种估算方法呢?首先要了解什么是物理估算,它有什么意义?物理问题的估算不纯粹是一种数学计算,而是充分利用物理知识,把 In recent years, there have been frequent questions in the examination questions in various provinces. Many candidates are often confused about such questions, and they spend a lot of valuable time solving problems. So how do you cultivate the student’s ability to estimate in the usual teaching? How do you give students the sense of estimation? How can you use various estimation methods flexibly in the problem solving? The first thing to understand is what physical estimation is. What is the point? The estimation of a physical problem is not purely a mathematical calculation but takes full advantage of physical knowledge.