Ключевые слова: asian, background, blackboard, concept, conceptual, development, education, educational, elementary, facilitating, green, handsome, homework, human, illustration, indoor, institutions, instructor, intelligent, international, knowledge, learn, learning, level, male, man, page, person, picture, preschool, process, protocol, read, representation, school, schoolboy, schooling, science, sense, skill, skills, small, society, specific, study, style, stylized, subjects, table student, teach, teacher, teaching, text, think, toward, train, training, word,