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在拓展性课程中通过融入自主实验探究,不仅可以有效激发学生学习化学的兴趣,还使得拓展性课程具有了生发性,成为基础性课程的有益补充,为学生和教师创造了自主发展的空间。同时,能促进学生全面而有个性的发展。在浙科版教材化学八下第三章第四节“二氧化碳”的课程结束后,基于教材内容进行二氧化碳的主题拓展,可开设“玩转干冰——玩出名堂”一课,在教学过程中通过学生一系列的自主趣味实验,学生全方位了解了干冰的物理化学性质,使课程的趣味与有效性并重,学生的成绩与素质齐飞。
Through the exploration of the independent experiment in the extended curriculum, it not only can stimulate students’ interest in chemistry, but also expand the expansive curriculum to become a useful supplement to the basic curriculum, creating a space for students and teachers to develop independently. At the same time, students can promote the development of a comprehensive and personality. After the end of the course “C02” in the textbook of Chemistry of Zhejiang Branch, the fourth section of the third chapter, after the course of “C02”, based on the contents of the textbook, the topic of carbon dioxide can be expanded to create a class of "Fun in Dry Ice - In the process of teaching, students through a series of independent fun experiments, the students a full understanding of the physical and chemical properties of dry ice, so that the course of both the fun and effectiveness of student achievement and quality of Qi.