An applet called"rust identification"was developed to recognize the type of rust in photos and calculate the surface area of rust on iron sheets using artificial intelligence.This paper designed and implemented a complementary"rust finding,forming,and preventing"practical science activity,which included three parts,namely,"introduction:rust finding""investiga-tion:rust forming"and"experiment:rust preventing".The activities led students to recognize the components of different rusts,investigate the environments in which different rusts form,and conduct experiments and practices to prevent rust.
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