According to Piaget, at which 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. At this stage, children gain a better understanding of mental operations and can think logically about physical objects and events. They start to understand concepts such as conservation, classification, and seriation, which allows them to tackle problems that require logical thinking related to tangible experiences.

In contrast, the formal operational stage, which follows the concrete operational stage, involves thinking abstractly and reasoning hypothetically. The pre-operational stage, prior to concrete operations, is characterized by egocentric thinking and a lack of understanding of the principles of conservation. Lastly, the sensorimotor stage is the earliest phase where infants explore the world through their senses and actions, and it does not involve logical thinking about concrete events at all.