In Piaget's theory, the second major stage of cognitive development (approximately from age 2 to age 7), in which children become more sophisticated in their use of symbolic thought but are not yet able to use logic. (194)
The period of human development between the ages of two and seven, described by Jean Piaget, during which children are not able to perform various cognitive tasks.
according to Piaget, the stage of cognitive development that occurs between ages 2 and 7.
the Piagetian stage, extending from 2 to 7 years of age, during which the child's use of language becomes more sophisticated but the child has difficulty with the logical mental manipulation of information. (119)
In Piagetian theory, the second stage of development, from approximately two to seven years of age in which thought becomes symbolic in form
Piaget?s second stage of cognitive development (ages 2-7 years). The child can think in terms of symbols but does not yet comprehend certain rules or operations, such as the principle of conservation. See also conservation.