Identify other students who have interests in the arts and ask them how they'd feel about organizing an arts committee for your school. Once you have enough interest at your peer level, approach a teacher in your school to support your efforts. The most sympathetic teacher or adviser could be the art teacher, band or orchestra director or the choir director. If your school has limited arts programs, consider an English or humanities teacher. Work with her to put together a plan for the committee and set forth the basic details of what you want your committee to do in the short term.
Make an appointment with your school's administrator to explain your ideas and the purpose of the arts committee. Presenting him with a written outline or plan that explains your goals and purpose is helpful; it's likely he has a busy and demanding schedule. Having a written record provides a reference after the initial meeting is over.
Find a meeting room once the school's administration approves your committee. The faculty adviser may have a classroom available after school hours, or you might be able to use meeting rooms or the library.
Set a time and date for your first meeting, then get the word out. Consider a notice in the school's newsletter, inform other teachers related to the arts about your new committee and put an announcement on your school's bulletin board.
Conduct your first meeting. Discuss what you want the committee to accomplish, the organizational structure of your group and how often you may need to meet. Circulate a tablet or notebook to record each person at the meeting, along with the name, phone number, email address and specific committee interests.
Follow up with your committee members as you make progress in establishing the groundwork for your committee. Keep them informed about the committee's progress and schedule meetings when you have important issues to discuss and decisions to make.