Psychology Principles in Practice Research Projects and Activities for Teaching Psychology: Principles in Practice This Psychology program offers high school appropriate content that illustrates current theories and gives students the tools they need to understand themselves and the world around them. Grades: 9-12 Material Type: Resource Materials Format: Softcover, 40 Pages ISBN-13/EAN: 9780554026923 ISBN-10: 0554026929 Product Code: 1211345 National/State: National Copyright Year: 2010