Mathematics via mime

This article has inspired me to teach my entire causal inference class next fall via mime:

Without saying a word, a man walks on stage carrying a case full of small plungers. Each time he reaches in the case to take some plungers out, he tries to array them in order on a table in front of him, but he always has one left over. Five, seven, 13: No matter what number, there is still that one left alone, and the man gets visibly, but silently, more exasperated at each turn.

The man is a mime named Tim Chartier, whose day job is associate professor in the department of mathematics and computer science at Davidson College in North Carolina. The plunger skit and many others that he and his wife, Tanya, have developed are part of their Mime-matics business. Having learned from the master of the craft, Marcel Marceau, they use their skills in mime to teach mathematics in a decidedly unconventional way.