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新课程化学教材中有一部分内容为阅读材料,与教材正文相辅相成,这是对教材正文的补充和延伸,这些阅读材料对学生掌握新知识有着重要作用。教师可以充分利用这些阅读材料的内容进行延伸,拓展课堂教学;也可依据阅读材料创设课堂教学情境,为学生提供足够的探索空间,让学生在不脱离教材的状态下,自主探究、讨论,积极思考解决问题,顺利完成教学内容。一、拓展阅读材料中的化学史以创设教学情境新课程教材中有大量的化学史材料,大部分是科学家们探求科学真理、不畏艰辛的故事。教师可利用这些材料创设丰富的教学情境,激发学生的学习兴趣,引导学生学习新知识,促使其转变学习态度,培养学生正确的科学观和世界观。比如,利用“苯的发现”创设教学情境。然后引入新课,法拉第花费整整5年的时间研究一种被当作废液的不明液体,这种持之以恒的钻研精神就是科学探究的精神,值得我们共同学习。请学生设计一个实验方案来探究一下科学家分离得到的液体——苯的物理性质。学生设计实验方案,讨论,然后教师演示,让学生顺利习得知识。二、结合阅读材料中的社会知识以创设情境化学与我们的日常生活、社会进步、科技发展有着
Part of the New Curriculum Chemistry Textbook is a reading material that complements the text of the textbook. This complements and extends the text of the textbook. These reading materials play an important role in students’ mastery of new knowledge. Teachers can make full use of the contents of these reading materials to extend and expand the classroom teaching; also based on reading materials to create classroom teaching situations, to provide students with enough space for exploration, so that students without any departure from the teaching materials, independent exploration, discussion and active Thinking to solve the problem, the successful completion of teaching content. First, to expand the history of chemistry in reading materials to create a teaching situation New curriculum materials in a large number of chemical history materials, most of them are scientists to explore the scientific truth, without fear of hardships. Teachers can use these materials to create rich teaching situations, inspire students ’interest in learning, guide students to learn new knowledge, make them change their attitude towards learning, and develop students’ correct view of science and world. For example, using “benzene discovery” to create a teaching situation. Then, with the introduction of a new course, Faraday spent five years studying an unidentified liquid that was treated as a waste stream. This persistence of the spirit of inquiry is the spirit of scientific inquiry and deserves our joint study. Ask students to design an experimental program to explore the physical properties of benzene, a liquid that scientists have isolated. Students design experimental programs, discuss, and then teacher presentations so that students can gain knowledge. Second, combining the social knowledge in reading materials to create situational chemistry and our daily life, social progress and technological development