The Montessori classroom offers a mixed age grouping which is a microcosm of everyday society.
Tír na nÓg offers prepared and ordered environments for children from 2 ½ to 6 years of age. There is no formal front or back to the classroom; nor do the children have particular desks. They can choose materials from open shelving and over a period, they develop into a community working with high concentration and few interruptions.
The materials in Montessori enviroments stimulate and educate the child's senses by providing activity with an in-built control of error so that the child is independently able to rectify his/her own mistakes leading to self confidence and self esteem.