Ключевые слова: 3d, answers, asking, assistance, attitude, blackboard, board, business, chalk, chalkboard, concept, course, development, distance, education, educational, elearning, executive, expert, expertise, idea, illustration, information, insight, know, knowledge, learn, lesson, more, planning, question, render, seminar, sharing, skill, smart, student, studing, study, studying, success, teacher, teaching, teamwork, text, trainer, training, want, wooden, word,