Despite decades of research on classroom management and school discipline, so-called bad behaviour nevertheless persists in every kind of classroom in every kind of school. Even as the harsh disciplining of adolescent behaviour has been called out as part of the school-to-prison pipeline, the diverse 'problem children' in Troublemakers - Zora, Lucas, Sean, and Marcus - reveal how a child's path to excessive punishment and exclusion in fact begins at a much younger age.