I'm interested in hearing what people's favorite lesson(s) are to teach each year. I redid a ton of my curriculum this year and that has forced me to reevaluate nearly everything to fit in the new stuff. Some of the cuts I've had to make have been very tough but at least it has made me reflect. For me, my favorites are my History Mysteries and specifically the Caesar one found at http://www.mrroughton.com/history-mystery-labs/cold-case-rome. While the other ones have some better exhibits for students that one being first is always the most enjoyable for me. It is unlike anything they've done before and really sets the tone for the type of inquiry I require in my class. It also helps that I get to kick it off with the lights going out and the opening trailer coming on. They buy in big time. I love hearing them debate the exhibits in a truly academic way. I always go home satisfied on that day. So, what lessons do you love to do?