Reflective teachers are always searching for ways to improve their teaching. When this reflection becomes intentional and systematic, they are engaging in teacher research. This type of research, sometimes called action research, can help bridge the gap between theory and practice by addressing topics that are relevant to practicing teachers. This article synthesizes literature within music education and general education to address (a) the conceptual underpinnings of action research, (b) characteristics of action research and teacher research, (c) action research critiques, and (d) implications for teacher research as a form of professional development.Most research done in music education fails to have any impact simply because the problems selected are not seen as problems by those who presumably would benefit from their solution. (Regelski 1994, 79) I once had a colleague who kept a pen and pad by his bed for times when he awakened at night with a good idea to try in class the next day. Although not all of us wake up in the middle of the night with new teaching ideas, most of us do continually generate thoughts about how to help our students learn. Which pedagogical techniques work best? Which sequence makes more sense? How can I create a more inviting learning environment? What motivates my students? The list goes on. Many teachers find that they can begin to answer these questions through conducting research within their own classrooms. This type of research is broadly referred to as teacher research and, within certain parameters, action research. This article synthesizes literature within the fields of music education and general education to address (a) the conceptual underpinnings of action research, (b) characteristics of action research and teacher research, (c) action research critiques, and (d) implications for teacher research as a form of professional development.Correspondence should be sent to Chad West, 182 Ludlowville Road,