You should check out the Board of Ed and see if you are qualified to be a substitute teacher or a teacher's assistant. My friend went abroad one semester, but the program didn't begin until March so she subbed for two months. In her city she only needed to have a certain number of college credits to qualify for the job. Good luck!
You can ask a favorite professor if he or she knows of any openings. Professors always need people to work in their offices or departments doing clerical work.