I'd keep it simple: gave demonstrations or demos

Wikipedia explains this as follows:
Demonstration involves showing by reason or proof, explaining or making clear by use of examples or experiments. Put more simply, demonstration means to clearly show.[1] In teaching through demonstration, students are set up to potentially conceptualize class material more effectively as shown in a study which specifically focuses on chemistry demonstrations presented by teachers.[2] Demonstrations often occur when students have a hard time connecting theories to actual practice or when students are unable to understand application of theories.

For example:
http://anatomy.utoronto.ca/about/history.htm