epresent images or objects and one object might even symbolize another object. For example, a child may think of a shoe as a car and push it around the house making car noises, or even a collection of dolls can become a classroom full of children and they are the teacher. This stage is called the preoperational stage because the child has not learned the concept and rules of operations. An operation is a mental routine for separating, combining and otherwise transforming information mentally in a logical manner. Piaget believes that the key feature of the preoperational stage is that children are unable to center their attention on more than one aspect of a situation at a time. The next two stages or operational stages, they are the concrete operational stage, and the formal operational stage. A child in this stage can perform logical activities. They can do different activities like find their way to a certain place, but they will not be able to draw a map of how they got there. This means that they are in the concrete operational stage. They are only able to refer to concrete objects. The final stage is the formal operational stage. This is the stage in a childs life when they can solve problems. They can also understand moral concepts.As you can see a child does not just grow up, they have a few processes of development that they have to go through before they can become an adult. The next time you see an adult you should think about all the different psychological developmental changes they went through to get at that stage in their life....