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《义务教育数学课程标准》(2011年版)明确指出:在数学教学中应当引导学生感悟建模过程,发展“模型思想”。“模型思想”作为一种数学思想,是沟通数学知识与数学应用之间的桥梁,是链接数学核心知识与外部世界的途径。教师要善于挖掘模型素材并引导学生领悟数学模型思想。一、在生活原型中建构概念型数学模型课件依次呈现:平衡(空天平)——不平衡(天平的左边放入两瓶200克的牛奶)——平衡(天平的右边放入400克砝码)。学生边观察天平,边说出变化过程。当天平保持平衡,教
“Compulsory Education Mathematics Curriculum Standard” (2011 Edition) clearly states: In mathematics teaching students should be guided by the process of perception, the development of “model thinking.” As a kind of mathematical thought, “model idea” is a bridge between communication mathematics knowledge and mathematics application, and it is a way to link the core knowledge of mathematics with the outside world. Teachers should be good at mining model material and guide students to comprehend the mathematical model. First, in the life prototype to construct conceptual mathematical model Courseware presented in turn: Balance (empty balance) - unbalanced (balance into the left two bottles of 200 grams of milk) - balance (balance into the right side of the weight of 400 grams ). While observing the balance, students talk about the process of change. When the balance of balance, teach