"Calm down" is a phrase that we all use, especially with kids when experiencing intense emotions. Here are some alternative phrases that just might yield better results, and an action plan to put them in place.
Great class project for Red Ribbon Week. Add the pledge around the artwork as a border. "I pledge to make healthy choices, be a positive role model for my friends, and support the mission of Red Ribbon Week: No use of illegal drugs, no illegal use of legal drugs.