Educational services, namely, providing professional development services for K-12 teachers in the nature of classes, seminars, workshops, lesson plans, and providing courses of instruction in the fields of economics, personal finance, entrepreneurship education, and related subjects, primarily for K-12 teachers and their students and for teenagers and young adults engaged in non-school-based educational programs, and distribution of course materials and assessment instruments in the nature of literature, education information in electronic form, online education information, lesson plans, and study guides in connection therewith