Social development in children 1 year 3 months

Kids love to play, often say that the game is child's work. How else can they learn about cause and effect relationships (build too high a tower of blocks, and it all falls apart), the laws of physics (stolkneshsya cup from the table, and she falls to the floor), or about the adult world (see what happens if you wear a hat and papa's imagine that the father's car are driving)?

Although at this age children still do not know how to play together. Their communication is parallel to the game, that is, they play side by side without interacting with each other. However, we can not say that kids that age are not interested in their peers. They just have not learned the game together, empathy and a desire to share toys. Yet, children learn to communicate, being in the company of children, and their desire to peers is nothing, as part of their social development.