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估算在日常生活与数学学习中有着广泛的应用。培养学生的估算意识,发展学生的估算能力,让学生拥有良好的数感,具有重要的价值。然而,学生的现状却不尽如人意,特别是到了中高年级,差别就越来越明显,追究其本质原因是学生无估算意识和能力,没有养成良好的估算习惯。基于以上的认识和思考,下面就针对如何培养中高年级学生估算习惯谈谈实践研究情况。
Estimation has a wide range of applications in everyday life and mathematics learning. It is of great value to train students ’estimation awareness, develop students’ estimation ability and give students a good sense of number. However, the status quo of students is not satisfactory, especially in the middle and upper grades, the difference becomes more and more obvious. The reason for this is that the students have no estimation and ability to estimate and have not formed good estimation habits. Based on the above understanding and thinking, the following on how to cultivate senior high school students to estimate practice to talk about practical research.