Wayne is asked to look at two rows of M&Ms. The first row has five M&Ms all lined up and nearly touching. The second row
has five M&Ms all lined up but spread out, thereby taking up much more room than the first row. When Wayne is asked which row has more M&Ms, he exclaims, "They both have the same amount!" According to Piaget, in which stage of cognitive development is Wayne
The concrete operational stage is the third stage in Piaget's theory of cognitive development. In this stage there individual develops logical thinking abilities. This is why the child is bale to understand that both m&ms have the same amount. This period spans the time of middle childhood, beginning from around age 7 and until approximately age 11
