Stages Of Group Development Prestage Stage I StageⅡ Forming Storming StageⅢ Stage IV Stage V Norming Performing Adjourning ©Prentice Hall,2002 15-8 Stages Of Group Development Prestage Stage I Forming Stage II Storming Stage III Norming Stage V Adjourning Stage IV Performing © Prentice Hall, 2002 15-8