A child is shown five dogs and five cats.Four dogs are added.The child is then asked if there are more dogs or more animals.A child in the concrete operational stage would reply "more animals." This is an example of

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This is an example of class inclusion, where the child understands that dogs are a subset of animals, and hierarchical classification, where the child can categorize objects into classes and subclasses. Both concepts are key cognitive abilities developed during the concrete operational stage according to Piaget's theory of cognitive development.

A Child Is Shown Five Dogs and Five Cats