Ключевые слова: abstract, agreement, attitude, better, black, blackboard, board, business, chalk, chalkboard, challenge, change, classroom, company, concept, corporate, crossed, education, excellent, future, good, impossible, incentive, learn, management, mind, motivation, motivational, opportunity, optimistic, possible, school, screen, study, success, teacher, text, think, training, trust, white, word, write,