Dr. Stahl began his teaching career as a substitute in the Boston Public School system in 2003.  He has taught mathematics in a correctional facility, high school, k-8, college, graduate school, and the National Museum of Mathematics in New York City. Dr. Stahl believes that education must prepare students to be good citizens, who can use their knowledge and experience to strengthen their communities. He also loves to cook, plays disc golf, and has two dogs.