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人教版九年级化学绪言如是讲:化学使世界变得更加绚丽多彩。化学知识在日常生活中随处可见,如:化肥、农药、水泥、钢材、玻璃和塑料制品,都是化学知识点的外在表现形式。初中学生通过“图式”认知所面对的陌生世界,构建内在的逻辑框架,在不平衡—寻求平衡的过程中掌握并理解所学习的化学知识。通过对初三学生化学“突现性质”问题认知的研究,揭示初中阶段学生学习化学知识的心理特点,针对发展阶段特征进行体验式意义教学法,尝试推动化学课程的有效开展。
PEP 9th grade chemistry INTRODUCTION: Chemistry makes the world more colorful. Chemical knowledge is found everywhere in everyday life, such as fertilizers, pesticides, cement, steel, glass and plastic products, which are external manifestations of chemical knowledge points. Junior high school students recognize the unfamiliar world through “Schema ”, construct the internal logical framework and grasp and understand the learned chemical knowledge in the process of imbalance - seeking balance. Through the study of junior high school students’ cognition of chemistry “emergent nature ”, the psychological characteristics of junior high school students learning chemistry knowledge are revealed, and the experiential teaching method is developed according to the characteristics of the development stage, trying to promote the effective development of chemistry curriculum.