temptation

Bake 2 batches of cookies or other simple treat. Make one batch 1/2 the size individually to the other. Before you start the lesson give each class member a small cookie (ideally on a napkin) and tell them not to eat it yet. The other batch is kept well hidden. Tell the class that they are not to eat that cookie until the end of class (I gave them a code word to avoid confusion). Tell them that they must not eat the cookie no matter what is said....