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新课标中明确地提出要加强培养小学生估算能力,原因就在于在人们的实际生活中,估算的应用大大超过精确计算,培养估算能力有利于解决日常生活中的问题,也可以检验计算有无错误,从而提高学生的判断能力以及计算的正确率。那么,如何才能加强和培养小学生的估算能力呢?一、多联系实际,明确估算的意义数学与实际联系密切,估算的意义要在教学中通过实例,让学生明确以提高学生学习估算的自觉性和学习估算的重要性。如“一个养鸡场,去年产蛋5890千克,今年比去年多产2020千克,今年约
The new curriculum standard clearly put forward to strengthen the ability of primary school students to estimate, the reason is that in people’s actual life, the estimated application greatly exceeds the accurate calculation, training ability to assess conducive to solving the problems in daily life, you can also test the calculation Errors, thereby enhancing the ability of students to judge and calculate the correct rate. So, how to strengthen and develop pupils ’ability to estimate? First, more contact with the actual, a clear estimate of the significance of mathematics and practice are closely linked to the significance of the assessment in the teaching through examples to make students clear to improve students’ learning assessment of consciousness And the importance of learning estimates. Such as ”a chicken farm, egg last year, 5890 kg, more than last year, more than 2020 kg, about this year