School Mental Health Training of Teachers

The goal of this clinical trial is to learn if different formats of a school-based psychosocial support training program can improve teachers' ability to recognize and respond to students' mental health needs. The study will include teachers working in public schools in Brazil. The main questions it aims to answer are: 1. Do teachers who receive the training improve their knowledge on how to better to identify and support students with mental health difficulties? 2. Do different formats of training (in-person, online, or self-paced) and the presence of supervision lead to different levels of improvement in this knowledge, in attitudes related to mental health, and helping behaviors? Researchers will compare five versions of the program (in-person, online, and asynchronous formats, with or without supervision) to see which approach is more effective, acceptable, and feasible. Participants will: 1. Take part in a training program delivered either in-person, online, or through self-paced materials; 2. In some groups, attend additional supervision sessions to discuss real-life cases; 3. Receive brief follow-up materials through mobile messages after the training 4. Complete online questionnaires at multiple time points (before the training, during the program, after completion, and at follow-up). The study will measure changes in teachers' knowledge, attitudes, and behaviors related to supporting students' mental health, as well as satisfaction with the program and its feasibility for large-scale implementation.