This stage of development was described by Piaget as the preoperative stage. Children at this stage are often between two and seven years old. Children at this stage begin to use symbolic thinking. Their reasoning skills also begin to develop. Cognitive development is also very important at this stage of a child's life (Feldman, 2011). Their thinking is partly logical, but limited (Fleming, 2004). They can only see things from their point of view, which is called egocentrism. They cannot yet understand the stages of transformations. They also don't understand that appearances can be deceiving. However, they are developing their use of the symbolic function. It is their ability to use symbols to describe something. Vygotsky also said that cognitive development is the result of social interactions. Children are guided and supported in problem solving (Feldman,