At what stage do children begin to think logically about concrete events?

Children begin to think logically about concrete events during the concrete operational stage, which typically occurs between the ages of 7 and 11 years. At this stage, they start to understand the principles of logical reasoning, such as conservation, classification, and seriation.

For instance, a child in this stage can grasp that the amount of liquid remains the same even when it is poured into a differently shaped container. They become capable of thinking about relationships between different characteristics of objects, allowing them to solve problems related to their immediate physical environment in a more organized way. This marks a significant advancement in cognitive development as children move from simply perceiving the world (as seen in earlier stages) to manipulating it through logical operations grounded in concrete experiences.

This stage serves as a crucial foundation for the development of more abstract thinking, which is characteristic of the formal operational stage that follows. However, during the concrete operational stage, children's logical reasoning is still bound to tangible and physical concepts, hence why this answer is the correct choice.