没有反思的教学是不成熟的教学,物理化学日记是弥补化学教学课后学习的最好方法。通过学生的自我消化和转化,提升学生的学习能力和学习兴趣,同时也是老师和学生交流的最好平台。本文主要从总结化学思想、反思教学内容、延伸化学课堂、创新发展新天地几个方面说明化学日记的重要作用。 Teaching without reflection is immature teaching, and diochemistry is the best way to make up for chemistry after class. Through the students ’self-digestion and transformation, enhance students’ learning ability and interest in learning, but also the best platform for teachers and students to communicate. This article mainly explains the important role of chemical diary in summarizing chemistry thought, reflecting on teaching content, extending chemistry class and innovating and developing new world.