Name and briefly describe the four stages of Piaget's cognitive development theory

What will be an ideal response?

A good answer will include the following key points:
• Sensorimotor (birth to 2 years): Infant's knowledge of the world is based on senses and motor skills. By the end of the period, infant uses mental representations.
• Preoperational (2 – 7 years): The child learns how to use symbols, such as words and numbers to represent the world, but relates to the world only through his or her perspective.
• Concrete operational (7 – 11 years): The child understands and applies logical operations to experiences, provided they are concrete and focused on the here and now.
• Formal operational (adolescence and beyond): The adolescent or adult thinks abstractly, speculates on hypothetical situations, and reasons deductively about what may be possible.