Final answer:
Jean Piaget's theory of cognitive development includes the concrete and formal operational stages where children develop logical-mathematical knowledge through interaction with their environment.
Step-by-step explanation:
The question pertains to Jean Piaget's contribution to logical-mathematical knowledge within his theory of cognitive development. Piaget proposed that cognitive abilities, including logical-mathematical reasoning, develop through a progression of stages. In the concrete operational stage (from about 7 to 11 years old), children begin to think logically about concrete events and acquire mathematical skills such as understanding operations and the concept of conservation. Piaget's later stage, the formal operational stage (from age 11 to adulthood), sees the development of the ability to think abstractly and hypothetically. While Piaget's stage theory has faced criticism and the idea of more continuous development has gained support, his work remains a foundational element in understanding cognitive progression.