Abstract Taking “the production of invisible ink” as the theme and starting from the magical phenomena in life,the special review teaching of “acid and base” in junior high school chemistry is carried out. Through students’ personal understanding of the principle, hands-on production, display and application of “invisible ink”, students can better master the acidity and alkalinity of the solution and the discoloration of the indicator, and understand the concept, chemical properties and chemical reactions of acid and alkali. Driven by multiple tasks, students’ practical ability and problem-solving ability are continuously enhanced, their awareness of scientific inquiry and discipline core literacy are continuously improved, and they can personally feel the close relationship between chemistry and life and the charm of chemistry.
ZHOU Chen-Yu, LIU Yong-Jun, LIU Xiao-Ling, SHENG Shou-Ri. Project-Based Teaching of “Acid and Base Review” in Junior High School Chemistry: Making Magic Invisible Ink[J]. Chinese Journal of Chemical Education, 2022, 43(23): 43-49.
