Ключевые слова: academic, attend, attention, audience, auditorium, blur, campus, class, classmate, classroom, cognition, college, course, data, demonstrate, diligent, diverse, education, equation, explain, group, horizontal, indoors, knowledge, learn, lecture, lecturer, lesson, math, mathematics, multiethnic, multiracial, presentation, seminar, show, solve, student, teacher, tutor, university, whiteboard, wisdom,