Ключевые слова: 1 september, 2020, 2021, academic, back, background, beginning, black, blackboard, board, celebration, chalk, chalkboard, class, classroom, college, concept, day, drawing, educate, education, end, frame, handwriting, learn, new, numbers, period, return, school, simple, study, studying, teach, text, university, welcome, white, write, year,