| 估算教学的建议与评价 |
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| 引用本文： | 罗玉华.估算教学的建议与评价[J].江苏教育学院学报,2009(3):61-64. |
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| 作者姓名： | 罗玉华 |
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| 作者单位： | 江苏教育学院初等教育系,江苏南京210013 |
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| 摘 要： | 估算是个体未经过精确计算而只借助原有知识对问题提出粗略答案的一种估计形式，是心算、数概念和算术计算技巧之间相互作用的过程，是数学素养的重要组成部分，受到数学课程改革的高度重视．数学教学中，必须紧密结合培养估算意识、形成估算策略和养成估算的习惯，以此来培养学生的数学素养，促进学生的数学思考，提高学生的估算能力．
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| 关 键 词： | 估算 数感 数学教学 |
The Pedagogical Suggestion and Evaluation of Computational Estimation |
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| LUO Yuhua.The Pedagogical Suggestion and Evaluation of Computational Estimation[J].Journal of Jiangsu Institute of Education(Social Science),2009(3):61-64. |
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| Authors: | LUO Yuhua |
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| Institution: | LUO Yuhua ( Department of Primary Education, Jiangsu Institute of Education, Nanjing, Jiangsu, 210013, China) |
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| Abstract: | Computational estimation is such a form of estimation that individuals propose the approximate answer to a question by means of original knowledge instead of accurate calculation, a process of interaction among mental arithmetic, number concepts and arithmetic calculation techniques. It is also an important composition of mathematical quality which is highly emphasized by mathematical curriculum reform. In mathematical teaching, we must cultivate students＇ estimation awareness, help them form estimation strategy, thus enhance their competence of computational estimation. |
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| Keywords: | computational estimation number sense mathematical teaching |
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