Decide what kind of organization you want to start. A parent-teacher-student association is usually a chapter of the national PTA. A PTA chapter collects dues, part of which are forwarded to the national association, and must follow the national PTA guidelines. On the other hand, parent-teacher-student organizations are typically independent, non-profit groups that set up their own bylaws.
Develop a mission statement and bylaws. Get your small group of interested participants together and decide upon the general purpose for your group. What do you want the organization to accomplish? Sample goals include developing a good communications network among parents, teachers and students or increasing awareness of good teaching practices. For bylaws, consider how votes should be taken and what other policies you will follow.
Find a lawyer. Search for a lawyer willing to donate some time to the group and fill out any necessary paperwork such as filing for tax-exempt status.
Recruit members. Advertise your organization through the school, local media, educational events and fliers throughout the town. Stay in touch with school administrators, especially counselors and the principal, to help with recruitment. Contact school student councils for likely student candidates.
Organize at the first meeting. Elect officers, disseminate bylaws, establish a specific meeting schedule, and brainstorm activities such as fundraisers. Be sure someone takes notes of the meeting.