[Solved] Design Developmentally Appropriate Environments

Think about a time you observed young children playing. Did you  notice that some children played in groups while others played  individually? Young children engage in different play categories as they  learn and develop. What are the different categories of play? What are  the benefits of these different types of play? 

What are the four categories of play in which children engage? Provide a one-sentence description for each category of play.

How does knowing the different play categories help you design developmentally appropriate environments?