The sensorimotor stage of childhood development The famous psychologist Piaget gives a definition of the sensorimotor stage of childhood development. It’s the first stage and lasts from birth until age two. Piaget claims that children of this age have very limited mental abilities. According to the passage, Piaget believed that kids in this stage cannot fully think. Especially, they are not able to make deductive decisions. For example, a child can’t define a shape of an object which fits a round hole. The professor mentioned the research that contradicts this idea and proves that kids of age three do think. The experiment conducted during the research shows that kids can find an object which was displayed to them and then hidden. Another Piaget's suggestion is that children in this stage of development have limited memory. They can’t remember the events of the past. They are bound to the present. The lector says that this idea is also wrong. She claims that kids have ideas about the world because they are surprised when something unusual happens. For instance, children are astonished when they see a magic trick. Overall, the professor feels that ideas of Piaget are useful, but many of them were proven not to be the truth. I agree with the professor since I have very early childhood memories. My parents said that the events which I memorized took place when I was two years old. Therefore, I believe that children in the sensorimotor stage are able to think and learn.