While I was out, I left a few distance/rate/time problems for students to solve. Upon my return, I was asking students about the problems and many students had similar responses.
S: "The Dirt Triangle."
|S: "Look, Mr. Cox it's like this...||"...You cover up the one you're looking for and if the other two are
next to each other, you multiply. If one is above the other, you
Me: "Really? That's strange. I never learned the Dirt Triangle. I learned ... The Turd Triangle
S1: "No, that won't work. That's not what he told us."
S2: "He said it didn't matter how we wrote it."
Me: "So which is it; does one work or are they the same? Make your case and be ready to defend it."