Ключевые слова: background, blackboard, board, boy, chalk, chalkboard, child, class, classmate, classroom, concept, draw, education, face, flower, friends, game, girl, help, house, information, kids, learn, lesson, nature, number, person, play, portrait, problem, resolve, room, school, schoolboy, schoolchild, show, smile, solve, students, together, togetherness, white, work, writing, young,