Mnemonics are often used by chemistry students to enable them to regurgitate information. Associating chemical reactions, groups of elements in the periodic table or orbitals with images to boost one’s memory can also be quite handy for international students grappling with new vocabulary.
Today I used this drawing as an example of what happens at the cathode and anode of redox relations regarding loss or gain of electrons in electrolytic cells. The picture itself was self-explanatory and everybody seemed to understand what I was trying to say.
Plus, the smile on my students’ face was priceless.