I use my entire 45 minutes on activities with the kids, so these should hopefully take up the time. They have the kids use the key expressions and ties into the theme of the chapter as well.1. Magic Card Tricks. You'll need scissors, decks of playing cards (ask your co-teacher if the school can buy them), and glue sticks. I expect there will be a lot of help needed as the kids set up the tricks, so probably make sure your co-teacher understands how the tricks work, too. I pulled the magic tricks from here: http://magic.about.com/od/Easy-Magic-Tricks-for-Kids/tp/Easy-Magic-Card-Tricks-Kids.htm2. Optical Illusions Skit. I printed off some size distortion optical illusions from http://www.brainbashers.com/opticalillusions.asp and wrote the answer to the illusion on the back. 3. 2 Truths and 1 Lie. Exactly what it says on the tin. I'm going to encourage the kids to say the most outlandish stuff they can think of since one of the key expressions is, "I can't believe that."