Montessori emphasizes learning through all five senses. Children in Montessori classes learn at their own individual pace, and according to their own choice of activities from many possibilities. Learning is an exciting process of discovery leading to concentration, motivation, self-discipline, and a love of learning. Montessori classes place children in three-year age groups (3-6, 6-9, 9-12, and 12-14) forming communities in which the older children spontaneously share their knowledge with the younger ones.