Sensorial impressions of child's environment are not the same as sensorial education. Impressions are feelings and not an intellectual building block. The human mind needs information to discriminate and appreciate its culture, art, music,poetry, reading and all aspects of the environment. Early sensorial educational material was provided by Dr. Montessori for this purpose.
Sensorial apparatus provides a particular purpose and focus. It includes using the child's hands, senses, and spontaneous activity. When a young child sees something new and exciting, he or she will want to touch the object. Young children will grab a new kitten and hold it immediately, they want to feel the reality of the object.
This education is not an exercise to sharpen the senses, but to allow a child to use his or her senses to understand what he or she sees. The first lessons present contrasted sensory materials and then graded materials. This teaches concepts of comparing and contrasting. For example, the first colors introduced are the primary colors, which are the most distinct on the color chart. Red, blue, and yellow are introduced, then shades and combinations are later introduced to grade by shades. "This is the beginning of the development of the intellect and it is brought about by the intelligence working in a concentrated way on the impressions given by the senses." (Child)
Education is used to tap the young child's mind of absorbed information from the first 3 years of life. The information at this point is a sea of impressions in the unconscious mind. As a child works further the young mind