U.S. Royal Martial Arts teaches Tae Kwon Do and Hap Ki Do to children and adults, and offers a beautiful, cafe-like wi-fi hot-spot overlooking the training mats for parents waiting while the children take lessons. (Sixty percent of the martial arts school's students are children, and forty percent are teens and adults.) Children enrolled in martial arts classes can also enroll in "mental math" classes, which teach math concepts using an abacus. Summer camps teach martial arts, mental math and computers.