Ключевые слова: ability, background, black, blackboard, board, business, career, chalk, coach, college, competence, concept, development, drawing, education, elearning, experience, expert, expertise, growth, handwriting, idea, improve, improvement, information, inspiration, instructions, intelligence, know, knowledge, learning, lesson, motivate, motivation, power, practice, professional, progress, qualification, school, skill, study, success, teaching, text, training, university, wisdom, word, yourself,