A pre-K teacher pours the same amount of water into a short, wide cup and a tall, narrow cup. Most children insist the tall cup holds more water, even after watching the teacher pour. Which of the following instructional responses is most developmentally appropriate?
Show answer and explanation
Answer: A. Provide repeated chances for children to pour, measure, and compare liquids among containers during center time
Children in Piaget's preoperational stage have not yet acquired conservation, and they build it gradually through direct, hands-on manipulation of materials rather than through verbal rules. Explaining the rule and having children repeat it may sound efficient, but young children can recite a rule without understanding it, so repeated pouring and comparing is more appropriate.