I am a parent at the University Preparatory Academy school. I am trying to find some speakers or resources for the following topics. Can you please help me?

Student Accountability/Responsibility: This is a broad area, we are open to ideas on this one. 2 sessions, if possible. Trying to separate middle school from high school., if possible. Time: Tues: Wed. 11:45-12:40 is Advisory time. Also, looking for workshop providers to work with students or visit classrooms in smaller venues.
November: Critical Thinking /Research. Someone from a University if possible.
December: Global Awareness/Community Service. Someone from a non-profit organization.

Any help on where to find speakers or who to contact would greatly be appreciated.