Junior Leaders in P3 (Primary 3) typically have the following responsibilities:

1. Role model: As a Junior Leader, you are expected to be a role model for your peers and younger students in the school. You should demonstrate positive behavior, attitude, and work ethic.

2. Help teachers and staff: Junior Leaders may be asked to help teachers and staff with tasks such as organizing materials, distributing materials, setting up activities, and assisting with classroom management.

3. Assist younger students: Junior Leaders may be assigned to assist younger students in their studies, help them with schoolwork, and provide guidance and support.

4. Plan and lead activities: Junior Leaders may be involved in planning and leading school activities such as sports day, school outings, and community service projects.

5. Attend meetings and training sessions: Junior Leaders are expected to attend meetings and training sessions to learn more about leadership, communication, teamwork, and other important skills.

6. Represent the school: Junior Leaders may be asked to represent the school at events such as meetings with other schools, competitions, and community events.

Overall, the role of a Junior Leader in P3 is to serve as a positive influence on their peers, assist teachers and staff, and help create a positive learning environment for everyone in the school.