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化学概念知识逻辑性较强,要使概念被学生所掌握,就必须精讲知识内容,准确地揭示化学概念的本质特征和概念间的内在联系。从认知心理学角度讲,强化和突出信息的输出,进行分类归纳,建立良好完备的认知结构,使之条件化、结构化,有助于学生知识的把握。精讲教学策略首先要求教师在上课、布置作业、课堂演示和观察、思考、提出问题、引导学生分析、板书设计、归纳小结等环节精心设计,重点突出;其次要精选学习策略,组织教学模式,优化课堂设计,对不同的教材内容给出不同的讲授顺序。
The chemical concept knowledge is strong in logic. If the concept is to be mastered by the students, it is necessary to lay emphasis on the content of knowledge and accurately reveal the intrinsic relationship between the chemical concept and the concept. From the perspective of cognitive psychology, to strengthen and highlight the output of information, classification and induction, to establish a good and complete cognitive structure, to make it conditional, structured, and help students grasp the knowledge. Focus on teaching strategies first require teachers in the class, homework assignments, classroom presentation and observation, thinking, asking questions, guide students analysis, design of the blackboard, summarized and other aspects of meticulous design, with a focus on; followed by the selection of learning strategies, organizational teaching model , Optimize the classroom design, different teaching materials given different teaching order.