Today is payday for my students in #PHYS1303. Every time I make a mistake in my class, I put a dollar in the mistake jar at the front of the class. Enough mistakes = donuts for the class. It is ok to make mistakes. Admit them. Own them. Learn from them. Don't quit. https://twitter.com/drsekula/status/1103640934540021768/photo/1 https://chirp.cooleysekula.net/attachment/55726