Why do Montessori classrooms have mixed age groups in one class?
Children learn from each other. Young children learn higher level cognitive and social skills in part by observing other children as models. In a mixed aged Montessori classroom, children's collaborative skills and cooperation are cultivated because older children act as role models and teachers of younger children. Older children reach a deeper level of understanding when explaining concepts to a younger child. Multi-age groupings help children develop a sense of community as well as foster social development.