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提高课堂实效,引导学生突破初中化学课时少,任务重,内容分散及有些概念极易混淆等矛盾,帮助学生过好基本要领关、实验操作关等,使学生更好地掌握基础知识和基本技能,开发学生的智力,培养学生灵活运用化学知识,独立解决问题的能力。
Improve classroom effectiveness and guide students to break through the contradictions of junior high school chemistry class hours, heavy tasks, scattered content and some concepts easily confused to help students to pass the basic essentials clearance, experimental operation, so that students better grasp the basic knowledge and basic skills , Develop students ’intelligence, develop students’ ability of using chemical knowledge and solving problems independently.