Jason introduced pigpen ciphers and then gave encrypted pigpen ciphers to 4 groups. He started out by telling them the symbols for 4 letters. This was too difficult, so we ended up giving them 3 more letters. They liked pigpen ciphers a lot more than Caesar ciphers. After they decrypted the ciphers, each group wrote their message on the board and the whole class put them in order (Jason had made them as if they were all part of the battle of Foy).
Then Jason gave them some simple Caesar ciphers to work out on paper that were written as if they were part of a diary.