Assessment Tool, Book, Program
Apply, Assess

Helping behaviourally challenging students

1 Star2 Stars3 Stars4 Stars5 Stars
Rate this resource


Dr. Ross Green’s 2016 book, Lost and Found – Helping Behaviourally Challenging Students, is a comprehensive overview of the Collaborative and Proactive Solutions (CPS) model (previously titled Collaborative Problem-Solving), an empirically-supported approach for managing children’s social, emotional, and behavioural challenges. In comparison with Dr. Greene’s two previous acclaimed books, Lost and Found is focused on providing hands-on techniques for implementing the CPS model in schools, including identifying students’ challenges using the Assessment of Lagging Skills and Unsolved Problems. Sample dialogues of CPS in action and concrete guidance for implementation are key features of the resource.

Dr. Ross Greene is a child psychologist, bestselling author of books on the CPS approach including The Explosive Child and Lost at School, and the founder of Lives in the Balance, a non-profit organization dedicated to disseminating the CPS approach.

Greene, R. W. (2016). Lost and Found – Helping Behaviourally Challenging Students (and, While You’re At It, All The Others). San Francisco, CA: Jossey-Bass.