Teachers Being Students: "What is Mass?"

Four brave non science teachers at my school were asked the question, "What is mass?"  The teachers struggled to answer the question. Students learn science concepts best by confronting what they know about a concept, usually a misconception, and then trying to fit new and often conflicting information with that knowledge. Students often view this as confusing, but studies have shown that they learn a science concept better (see Veritasium's talk on effective education movies). The purpose of this video is to show my students that teachers/adults go through the exact same process.