Mathnasium is a long term math-only learning center where they help kids catch up, keep up and get ahead in math. Mathnasium does it by teaching math in a way that makes sense to them. Joining Mathnasium is very much like joining a gym. There is a monthly membership fee, and students come whenever they want as often as they want. Instructors are like math "personal trainers" working one-on-one with students in a group environment. Each student is given a comprehensive math skills assessment. Mathnasium then builds a customized math curriculum for each student based on the gaps in their knowledge. So if there are 10 students at a given time in the center, they are not teaching one class of 10 students; Mathnasium is teaching 10 classes of one student each.