Designating or of a method of educating young children, devised in 1907 by Maria Montessori, which emphasizes training of the senses and proceeds by guidance and self-direction rather than by rigid control of the child's activities.
Webster's New World
Montessori Sentence Examples
The Montessori program is known as a "living room for children".
Maria Montessori discovered in the early 1900s that children are more interested in and more successful at lessons when they have been allowed to choose the topic or activity.
As the 4x4's various pseudonyms - Chelsea Tractor, Montessori Wagon - suggest, it's not their ability to go off road.
This philosophy is taught in Montessori schools all over the world.