Last Friday we did this thing called Breakout EDU. In Breakout EDU, you have to find clues and with those clues, you have to open a case with Hershey Kisses in it.
I thought one of the hardest puzzles in Breakout EDU was finding the pictures of mice with invisible codes. The mice were behind things, under things, and on things. The fact that they were often low made it hard to find them.
Our whole class was doing it together in the room across from our classroom. I have to admit myself, I think that no one worked together. I got a headache because of all the people shouting through the room. But it was still kind of fun to figure things out.