During the first plane of development, the child has what we refer to as an absorbent mind. He absorbs everything from his environment. There is no reasoning for what he is learning; he takes in everything!
The child explores the world with his senses. He is not interested in how or why something came to be, he prefers to touch and feel the things that make up his world.
Everything surrounding the child is absorbed. Access to fantasy and make-believe is very limited in this plane.
Children work shoulder to shoulder with their other friends rather than "together"; they are not too social yet.