By the End of the Primary Circular Reaction Substage, Piaget's

question 23

Multiple Choice

By the end of the primary circular reaction substage, Piaget's son Laurent was

• A) discovering his hands by chance.
• B) moving his hands in order to see them.
• C) looking for toys that his father had hidden.
• D) imitating his father's facial expressions.

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Definitions:

Complementary Goods

Products or services that are used together, where the demand for one is increased when the price of the other decreases.

Demand Curve

An illustration that displays how the price of a product or service correlates with the amount people want to buy during a specific time frame.

Price

The amount in currency estimated, obligatory, or contributed as payment for something.

Quantity Demanded

The total amount of a good or service that consumers are willing and able to purchase at a given price within a specified time frame.