论文部分内容阅读
七年级的数学教学,是小学与初中的衔接教学。在七年级的概念教学中,教师应该注重数学符号语言的应用,并有意识地训练学生把数学文字语言转化为数学符号语言,把数学符号语言转化成数学文字语言,这样才能把学生引入到数学的抽象思维中。下面,笔者通过三个环节提出“相反数”概念教学,与读者交流。第一环节:数形结合,引出概念。教师:同学们刚学习了“数轴”的相关知识,那么请在
The seventh grade mathematics teaching, is the primary and junior high school cohesion teaching. In the seventh grade of concept teaching, teachers should pay attention to the application of mathematical sign language and consciously train students to convert mathematical language to mathematical sign language, mathematical sign language into mathematical language so that students can be introduced into mathematics In abstract thinking. The following, the author put forward through the three links “opposite number ” concept teaching, exchange with readers. The first link: a few forms combined, leads to the concept. Teacher: Students just learned about the “axis”, then please