What was used to correct a three behavior or vocabulary in the book the giver?

The Three's would be Punished by a system of smacks with the discipline wand: a thin, flexible weapon that stung painfully when it was wielded. The specialists were trained very carefully in the discipline method: a quick smack across the hands for a bit minor misbehavior; three sharper smacks on the bare legs for a second offense.The Three's may also be punished with a "stand in the corner." Many Three's have been punished with having to sing infront of the class.Or such as a french kiss.