According to Jean Piaget, at which stage do children begin abstract thinking and logical reasoning?

→ According to Piaget, during the first stage of development (birth to approximately 2 years of age), an infant learns best: → Under Jean Piaget's theory of cognitive development, upon detailed analysis of the essential and logical limitations of the 'Preoperational Stage', which of the following statements is scientifically most valid regarding the concepts of 'Egocentrism', 'Irreversibility', and 'Animism'? → According to Piaget, in which stage of cognitive development does a child begin to think logically about concrete objects and events? → According to Jean Piaget's theory of cognitive development, when a child attempts to fit new information into pre-existing schemas without modifying them, what is this cognitive process called? → According to Jean Piaget's theory of cognitive development, what is the age range of the 'Formal Operational Stage'? → The four stages of children's intellectual development (sensorimotor, preoperational, concrete operational, and formal operational) were identified by whom? → According to Jean Piaget's theory of cognitive development, what is the age range of the 'Formal Operational Stage'? → According to Jean Piaget's theory of cognitive development, what is the age range of the 'Concrete Operational Stage'?