Mathnasium is a global education franchise that specializes in teaching math to children from pre-kindergarten through high school. They make money by offering personalized math tutoring services through a network of learning centers, which operate on a franchise model. Founded in 2002 by Larry Martinek, a math educator with over 40 years of experience, Mathnasium has grown to over 1,000 locations worldwide. The company is known for its proprietary teaching method, the Mathnasium Method, which focuses on developing a deep understanding of mathematical concepts rather than rote memorization.