This "Rules for CI Classes" poster is helpful in laying down the ground rules for interactions in class. After explaining each rule at the beginning of the year, it's easy to "enforce" them just by pointing or indicating the number of the rule and making the "teacher face". Students know what they need to stop or start doing.
Choose English or Chinese (Pinyin) for your download. Prints out beautifully up to 11x17 inches; may pixellate at larger sizes.