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在亲历学校六年级数学期末测试、阅卷、分析和研讨之后,笔者发现,学生基础知识与开放性问题的得分率呈现出高低背离的趋势,且差距较大。分析发现,学校大部分学生双基扎实,但对图表式、对话式等开放性试题失分较多。究其原因,是由于教学中学生缺乏“数学活动经验”的积累。一、“数学活动经验”积累存在的问题分析仔细分析学生的答题情况,并辅之于学生访谈、教师研讨,笔者发现主要有以下几方面问题。
After having experienced the sixth-grade maths final test, marking, analysis and discussion in the school, I found that the score of students’ basic knowledge and openness tended to diverge from each other, and there was a big gap between them. Analysis found that most students in school double solid base, but the graphical, interactive and other open questions more points. The reason is due to the lack of “accumulation of experience of mathematical activities” in teaching students. First, the “mathematical activity experience ” the accumulation of existing problems analysis careful analysis of the students answer the question, supplemented by student interviews, teacher discussions, the author found mainly in the following aspects.