41 educational services, namely, providing classroom instruction for K-12 students utilizing Montessori principles; teaching in the fields of archaeology, art, charities, classics, creative writing, cooking, debating, economics, engineering, film, media, geography, history, human rights, law, literature, drama, mathematics, music, performing arts, philosophy, politics, current affairs, psychology, science, animal welfare, inter-cultural understanding; architecture, the environment, ecumenism and religions, information technology, social sciences; educational services, namely, mixed-age learning studios and non-traditional educational instruction from guides and experts in fields of archaeology, art, charities, classics, creative writing, cooking, debating, economics, engineering, film, media, geography, history, human rights, law, literature, drama, mathematics, music, performing arts, philosophy, politics, current affairs, psychology, science, animal welfare, inter-cultural understanding; architecture, the environment, ecumenism and religions, information technology, social sciences