Ключевые слова: 101, basic, black, chalk, chalkboard, class, classroom, classrooms, college, course, courses, educate, education, educational, elementary, foreign, grade, instruct, instruction, introduction, introductory, language, lecture, lectures, practice, preparation, presentation, remedial, russia, russian, school, schooling, second, spanish, student, teacher, teaching, technical, train, training, translation, tutor, university, white,