Ключевые слова: academic, acronym, cartoon, character, child, childhood, children, color, coloured, colourful, concept, curriculum, development, education, element, elementary, engineering, grade, header, icon, idea, illustration, kid, kids, learn, learning, math, mathematics, person, primary, school, schooling, science, smart, student, study, subject, symbol, system, teaching, text, wording, year, young, youth,