Principle objective of this article is to discuss on Cognitive Development Under Age of Twelve. Piaget referred to the cognitive development occurring between ages 7 and 11 since the concrete operations stage. When it is in concrete operations, children can’t think logically and abstractly. These are limited to thinking “concretely, ” or even in tangible, definite, specific, and uni‐directional terms determined by real and concrete experiences as an alternative to on logical abstractions.