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估算是小学数学计算教学中的一项内容,是数学计算的重要组成部分,也是计算策略的一种。相对于原来的教材,估算教学出现的篇幅明显增多,更有了专题的估算教学内容。然而在实际教学中估算往往不被重视。落实估算教学不能仅仅停留在口头上,而应实实在在的从思想上重视起来,从行动上研究起来,从方法上指导起来,从意识上培养起来。基于此,我通过几年来的教学探索、实践,有了一些初步的认识。一、在动手操作中形成估算意识培养学生的估测意识,提高学生的估测能力,是小学低年级的估算教学的重要目标之一,在生活实践中,估测是一种十分有用的实际能力。对于一年级的学生,一切从零开始,教师的主要任务就是对方法的指导。下面结合一节一年级“估测”教学,谈谈自己的
Estimation is a part of elementary mathematics calculation teaching, an important part of mathematical calculation, and also a kind of calculation strategy. Relative to the original textbook, the estimated teaching appeared significantly increased the length of space, but also the subject of the estimated teaching content. However, in practical teaching, estimation is often not taken seriously. The implementation of the evaluation of teaching can not stop at the verbal, but should be real attention from the ideological, research from the action up, from the method of instruction, to cultivate awareness. Based on this, I have some preliminary understanding through several years of teaching exploration and practice. First, in the hands-on assessment of the formation of awareness training Students to develop awareness of the assessment and improve the ability of students in the estimation of the lower grades of primary school teaching an important goal in life practice, the assessment is a very useful reality ability. For first-year students, starting from scratch, the primary task of the teacher is to guide the method. The following combination of a first grade “estimate ” teaching, talk about their own