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化学反应的方向教学目标是让学生了解反应焓变与反应方向有关,知道化学反应存在熵变且反应熵变与反应方向有关,结合已有知识及日常生活中的见闻,构建化学反应方向的判据,学会运用比较、归纳、概括等方法对信息进行加工,构建新知识,使学生体会事物的发展、变化常常受多种因素的制约。为了实现教学目标,教师应该落实新课改精神,课堂设计应该更加注重学生的主体性,增强教学效果。
The direction of the chemical reaction The teaching goal is to enable students to understand the reaction enthalpy change and the direction of the reaction, knowing that the chemical reaction entropy change and the reaction entropy change and the direction of the reaction, combined with existing knowledge and daily life knowledge, to build a chemical reaction direction According to that, learn to use comparison, induction, generalization and other methods of information processing, construction of new knowledge, make students appreciate the development of things, changes are often subject to many factors. In order to achieve the goal of teaching, teachers should implement the new curriculum reform, class design should pay more attention to the students’ subjectivity and enhance teaching effectiveness.