Boarding schools; Educating at senior high schools; Education services, namely providing classes, seminars, workshops, tutoring, and mentoring in the field of middle and high school reform; Teaching at elementary schools; Teaching at junior high schools; Teaching in the field of mathematics, science, engineering, literature, language arts, foreign language, and reading; Education services, namely, providing tutoring in the field of mathematics, science, engineering, literature, language arts, foreign language, and reading; Education services, namely, providing tutoring in the fields of mathematics, science, engineering, literature, language arts, foreign language, and reading; Educational research; Organization of seminars, working groups, research groups and conventions, in the field of medicine; Consultancy in the field of learning difficulties; Consultation in the field of K-12 educational systems