Ключевые слова: academic, art, back to school, backpack, black and white, blackboard, book, cartoon, chalkboard, chemistry, child, class, classroom, clock, collection, college, colorful, design element, doodle, drawing, education, element, elementary school, illustration, kid, knowledge, learn, learning, lesson, notebook, outline, paper, pen, pencil, pencil drawing, person, school, science, set, sketch, student, study, studying, teacher, teachers day, teachers doodle, teaching, university,