In the video below, Mrs. Tara Smith, presents a Constructive Triangles: rectangular box lesson to one of her students. She will show her student first what is expected of her in the Montessori lesson. Then the student will independently follow thru with the lesson. This lesson is one of the many sensorial lessons in the Montessori classroom.
Sensorial comes from the words sense or senses. As there are no new experiences for the child to take from the Sensorial work, the child is able to concentrate on the refinement of all his senses, from visual to stereognostic.
The purpose and aim of Sensorial work is for the child to acquire clear, conscious, information and to be able to then make classifications in his environment. Montessori believed that sensorial experiences began at birth. Through his senses, the child studies his environment. Through this study, the child then begins to understand his environment. The child, to Montessori, is a “sensorial explorer”.