Abstract Taking “apple juice browning” as the real situation, an extended course based on the teaching content of “influential factors on chemical reaction rate” in the compulsory stage is carried out under the guidance of the problems. In the process of learning, students combine the knowledge and life experience to explore the situation, realize the particularity of “enzyme” in the browning reaction, and use handheld technology to deeply explore the factors affecting the browning rate, gradually construct an understanding model of “inhibition of browning rate”, experience the value of chemistry in social life, improve the ability to control variables, and develop core literacy in chemistry such as “evidentiary reasoning” and “scientific inquiry”.
CHEN Jun-Ming, QIAN Yang-Yi, CHEN Yun-Ren, Wang Zi-Cheng. Extended Course Teaching Based on Real Situations and Problem Orientation: Explore the Factors Affecting the Browning Rate of Apple Juice[J]. Chinese Journal of Chemical Education, 2024, 45(21): 39-46.
