At first, your baby will learn to grasp the individual rings and enjoy rocking the base of the stacker. As fine motor skills develop, he will learn to place the shapes on the stacker. This will help to teach your baby that his actions affect his surroundings. As baby grows, he begins to touch and feel everything around him with his hands and mouth. Toys with a variety of textures will help baby more fully explore this sense. Playing with baby helps him to learn and discover things that he would not learn playing alone.