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所谓数学活动经验,是指教师创设特定的活动情境,让学生展开观察、分析、推理等,建立个性化的学习认知,并将这些认知正向迁移到下一步的课堂探究中。怎样实施有效的数学活动,帮助学生积累数学活动经验呢?笔者根据人教版二年级数学上册《倍的初步认识》一课的教学,谈谈体会和思考。一、建构概念,积累收集经验【片段一】1.呈现课件(2个梨为一组,2个苹果为一组,有三组苹果)。引导学生
The so-called experience of mathematical activities means that teachers create a specific activity situation, let students expand observation, analysis, reasoning and so on, establish personalized learning cognition, and forward these cognitions to the next step of classroom exploration. How to implement effective mathematics activities to help students accumulate experience in math activities? The author according to the second edition of PEP teaching book “times the initial understanding of” a class of teaching, talk about experience and thinking. First, the construction of the concept of accumulation of experience [Fragment one] 1. Presentation courseware (two pear as a group, two apples as a group, there are three groups of apples). Guide students