What are some of the major strengths and criticisms of Piaget's theory of cognitive development?

What will be an ideal response?

A good answer would include the following key points:
• Much research has been conducted to demonstrate the basic foundation that children learn much about the world by acting on objects in their environment.
• The broad outlines established by Piaget of the cognitive accomplishments that occur during infancy are generally accurate.
• There are questions about the stage conception, including the suggestion that cognitive development occurs in waves versus stages.
• Some researchers suggest that sensation and perception should be considered to play a role in cognitive development, not just motor activities.
• There is considerable questioning about Piaget's assertion that object permanence is achieved at about the age of 1. Other age ranges have been proposed.
• Piaget's work describes children of Western countries better than those of non-Western countries.