Learning about Piaget”s Theory really hit home for me. I am the oldest child of three and have witnessed all the stages that Piaget describes. The first stage from birth to two years of age is considered the Sensory Motor Stage. At this point in time children take in the world through their senses along with gaining object permanence. Object permanence is the knowledge that things exist even when they can not be seen. I can remember my brother always wanting to play with the pendant on my moms necklace. To get him to stop she would just put the pendant inside her shirt so he couldn’t see it. Even though my brother saw her tuck it away, since it was no longer visible he completely forgot about it. As time went on and he got older this stopped working, because he gained object permanence, so she would have to take it off completely. The second stage from ages two to seven is called the Pre-Operational Stage. In this time period children learn language but do not understand logic. They are also starting to form a theory of mind but lack concept of conservation. Concept of conversation is the understanding that quantity remains the same despite the change in shape. At this time in my brothers life i can remember unevenly splitting candy with my brother and lying about the quantities (so I could have more) and he would believe me. The third stage is called Concrete Operational Stage which is during ages seven to eleven. At this stage children can now think logistically and understand conservation. This was the turning point in brothers life where i could no longer trick or lie to him because he could now independently think about if i was being fair to him. The last stage called the Formal Operational Stage is from ages eleven and up. During this time period children can think logically about abstract concepts. This stage is thought to being earlier than Piaget believed. Piaget’s Theory is still very influential today and holds a lot of empirical support.