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加强直观引入概念小学生正处在从形象思维向抽象逻辑思维过渡的时期,教师必须从实际问题出发,利用直观教具,帮助学生逐步抽象概括出数学概念。如我讲“分数”概念时,利用园形、长方形、正方形、线段图等直观教具帮助学生理解。教学开始,首先通过事例说明人们在生产和生活中的计算,仅仅用整数和小数,还不能满足需要,必须把一个整体(即单位“1”)平均分成若干份,用它的一份或几份的数来表示,这样引入分数。然后老师取出厚纸做的园片等分成
Strengthen the concept of intuitive introduction Pupils are in the transition from the image of thinking to abstract logical thinking period, teachers must proceed from the practical problems, the use of visual aids, to help students abstract abstracted mathematical concepts gradually. When I say the concept of “score”, I use the visual aids such as garden, rectangle, square and line drawing to help students understand. Teaching begins by first illustrating people's calculations in production and life through examples. Just using integers and decimals can not meet the needs. You must divide the whole (that is, unit “1”) into several copies and use one or a few The number of copies to say, so the introduction of scores. Then the teacher removed the cardboard made of the garden into equal parts