JEAN PIAGET STAGES OF DEVELOPMENT Isabella Lorenzo P.6 Sensorimotor (Birth to 2 years old) ■ The sensorimotor stage is the first stage of your child's life, according to Jean Piaget's theory of child development. It begins at birth and lasts through age 2. During this period, your little one learns about the world by using their senses to interact with their surroundings. Preoperational (2-7 years old) ■ During this stage, children build on object permanence and continue to develop abstract mental processes. This means they can think about things beyond the physical world, such as things that happened in the past. Concrete Operations (7-12 years old) ■ The concrete-operational stage depicts an important step in the cognitive development of children (Piaget, 1947). According to Piaget, thinking in this stage is characterized by logical operations, such as conservation, reversibility or classification, allowing logical reasoning. Formal Operational Stage (12 Adulthood) ■ The formal operational stage is characterized by the ability to formulate hypotheses and systematically test them to arrive at an answer to a problem. The individual in the formal stage is also able to think abstractly and to understand the form or structure of a mathematical problem.