Constructive play is when children manipulate their environment to create things. This type of play occurs when children build towers and cities with blocks, play in the sand, construct contraptions on the woodworking bench, and draw murals with chalk on the sidewalk. Constructive play allows children to experiment with objects; find out combinations that work and don't work; and learn basic knowledge about stacking, building, drawing, making music and constructing. It also gives children a sense of accomplishment and empowers them with control of their environment. Children who are comfortable manipulating objects and materials also become good at manipulating words, ideas and concepts.