《高中化学课程标准》中对课程基本理念有这样一条描述:“从学生已有的经验和将要达到的社会生活实践出发,帮助学生认识化学与人类生活的密切关系.”其实对该句的理解就是要求教师在课堂教学中要密切关注学生的现有知识水平,以及与我们将要完成的教学目标之间的“距离”.如果套用教育学上的原理,就是苏联教育学家维果茨基提出的“最近发展区”理论.该理论认为学生的发展有两种水平,一种是现有水平,另一种是可能的发展水平,这两者之间的差距就是“最近发 The ”High School Chemistry Curriculum Standards“ describes the basic concepts of a course as follows: ”Starting from the students’ experience and the social life practice to be achieved, it helps students to understand the close relationship between chemistry and human life.“ In fact, Is to require teachers to pay close attention to the current level of knowledge of students in the classroom teaching, as well as the ”distance“ between them and the teaching goal we will accomplish.If we apply the pedagogical principle, that is, the Soviet pedagogic dimension The theory of ”recent development zone“ put forward by Gutski suggested that there are two levels of development for students, one is the current level and the other is the possible level of development. The gap between the two is ”Recently sent