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在小学阶段,对于分数意义的学习,教材一般显性地分为两个阶段,第一阶段为分数的初步认识,第二阶段为分数的意义。小学阶段分数意义的教学分为五个阶段:1要经历“平均分”的活动,为学生初步认识分数积累经验。2在分数的初步认识教学中,帮助学生直观认识部分与整体的关系,感受分数意义的丰富性。3在分数意义和分数基本性质的教学中,重点发展学生理解分数的比率、度量等方面;分数与除法关系的教学中,重点发展学生理解分数的运算等方面。4在分数的运算及解决问题的教学中,鼓励学生从多个维度理解分数意义。5在比的学习中,沟通分数、除法和比的关系。就三年级(上册)《认识分数》而言,应属于教学的第一阶段。通过再次教学此内容,对第一、二课时整合进行教学,积累经验。
In the primary school stage, for the study of the meaning of the scores, the teaching materials are generally divided into two stages explicitly. The first stage is the initial recognition of the score, and the second stage is the meaning of the score. The primary meaning of the teaching stage is divided into five stages: 1 to experience “average points ” activities for students to gain initial experience points accumulated experience. 2 In the initial recognition of scores of teaching, to help students intuitively understand the relationship between part and the whole, feel the richness of the meaning of points. In the teaching of the basic meaning of scores and marks, emphasis should be placed on the aspects such as the ratio and measurement of students ’understanding of marks, the teaching of the relationship between marks and division, and the development of students’ understanding of scores. 4 In fractional computing and problem solving, students are encouraged to understand the meaning of scores from multiple dimensions. 5 in the ratio of learning, communication score, division and ratio relationship. Third grade (first volume) “Cognitive Score”, should belong to the first phase of teaching. By teaching this content again, the first and second class hours of integration of teaching, gaining experience.