Ключевые слова: academic, back to school, blackboard, blank, board, book, bookshelf, boy, caucasian, chalkboard, cheerful, child, childhood, class, classmates, classroom, clear, college, colourful, computer graphic, copy space, cute, desk, development, digital, digitally generated, early learning, education, elementary, elementary school, empty, female, frame, girl, grey, happy, higher education, in row, in a line, knowledge, learn, learning, library, male, mixedrace, plain, plank, portrait, posing, pupil, school, schoolchild, sitting, smiling, together, university, wood, wooden,