With these exercises in grammar, we bring up to consciousness the knowledge that already exists in the subconscious. If concepts exist only in the subconscious, without the possibility of coming to consciousness, they are useless. These grammar exercises are a help to develop the potentialities that already exist in the children. Dr. Montessori says that if we make the lights that exist in the children’s subconscious interesting, they will become conscious elements in their minds