Dr. Dex earned his PhD. degree in physics from the University of Nebraska-Lincoln. Before he joined Kumon, he was a scientist/engineer with 52 granted patents and 95 published papers. The Center was established in 2003 by Dr. SK Lo, and Dr. Dex became the center director and chief instructor in January 2017. Other staff members at the center are highly qualified, many with advanced degrees, who are assisted by excellent college and high school graders who have become role models for our students. They work with Dr. Dex to assist our students before and during class time. The key role of the instructors and staff is to motivate, guide, and instruct students in gaining skills, habits, independence,confidence, and self-learning abilities. Our class has an average student to staff ratio of 3 to 1.