The theatre expression workshops will run for 12 weeks, with one 75-minute workshop per week. They will be incorporated into the regular class timetable and will be run by the two members of the intervention team who have training in theatre and psychology, and the homeroom teacher, whose level of direct involvement will increase gradually as he or she becomes familiar with the workshops.

In each classroom assigned to the tutorship intervention, two academic resource assistants will provide weekly in-class support to students for the same length of time than the drama workshop (75 minutes weekly). Individualized student objectives on reading fluency and math will be implemented (one in math and one in reading per student).

Classes not participating neither in drama workshops nor in group tutoring activities will fill out a questionnaire as a basis for comparison.

Academic in-class intervention that focuses on differentiated academic instruction and improved overall academic adjustment. In each classroom assigned to the tutorship intervention, two academic resource assistants will provide weekly in-class support to students for the same length of time than the drama workshop (75 minutes, once a week), with the teacher present in the classroom.

Impairment of emotional and behavioural symptoms will be assessed by the Impact Supplement of the SDQ completed by the adolescents. The SDQ is a 25-item Likert scale assessing emotional and behavioural symptoms. This questionnaire includes an impairment measure that enquires about symptoms in terms of chronicity, distress, social impairment, and burden for others.

Will be assessed by the SDQ global scores (teachers and youths reports).