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在数学上,“线段图”是指用一定的线段、文字、数字等符号描绘事物几何特征、形态、位置及大小的一种形式。一、“线段图”编排现状及教学现状分析新课程实施以来,人教版的数学教材淡化了应用题类型的同时也淡化了线段图的使用。新课程后,线段图要不要教,一线教师很纠结。教材有没有要求我们教呢?笔者查看了12册书,做了简单统计(以书上看到一题线段图为1次):二年级上册出现2次,三年级上册出现2次,六年级上册山现10次。
Mathematically, “line drawing ” refers to a certain line, text, numbers and other symbols depicting the geometry of things, shape, location and size of a form. First, “line drawing ” the status quo and teaching status quo analysis Since the implementation of the new curriculum, the PEP mathematics teaching materials to dilute the type of application questions also dilute the use of line drawings. After the new curriculum, the line segment should not teach, front-line teachers are tangled. The textbook did not ask us to teach it? I looked at the 12 books, made a simple statistics (to see a line in the book the picture is 1): the second grade appeared on the second volume, the third grade appeared on the 2nd, sixth grade Book Hill 10 times now.