At Montessori schools, children are usually divided into 3-year age groupings. This makes Montessori classrooms diverse environments with a variety of ages, abilities, and interests. Younger children are able to observe and learn from older children doing more challenging work. Older children have the opportunity to develop leadership skills and be role models. Learners are allowed, and even encouraged, to work collaboratively (especially at the elementary age level when they are developing their sense of fairness and thrive on social activity). When you observe in Montessori environment you’ll witness a busy hum of activity--that means learning is happening! For now, enjoy this video from Montessori Guide showing collaboration in the elementary environment in action.