Abstract In the review class of oxygen preparation, the traditional design pays attention to the depth of knowledge; in order to reflect that chemistry is creating matter at different levels, we should pay attention to expanding the width of knowledge; with “Shenzhou 13 astronauts stationed in the Chinese space station and where the oxygen in the space station comes from” as the main context, students will be led to explore the main methods for preparing oxygen at the production and life level, the basic principles for preparing oxygen in the chemical laboratory and the design of gas generation devices with controllable reaction, and students will be required to summarize the methods for preparing carbon dioxide in production and life after class; the whole class highlights the application value and subject thought of chemistry by creating a big situation and constructing a big concept, and enhances the intuition, interest, practicality and subjectivity of the review class.
LI De-Qian, ZHANG Yi, CHEN Li-Ming. Where Does the Oxygen in the Space Station Come From:Review Course of Gas Preparation[J]. Chinese Journal of Chemical Education, 2023, 44(7): 46-50.
