Ключевые слова: academic, algebra, arithmetics, back, background, blackboard, caucasian, chalkboard, child, childhood, class, confused, development, education, elementary, emotional, formulas, generation, girl, grade, grey, growth, hard, information, kid, knowledge, learn, lifestyle, little, math, mathematical, modern, motivation, person, portrait, primary, problem, pupil, scholarship, school, schoolchild, science, smart, stress, student, study, upset, young, youth,