When Piaget and Inhelder asked children of different ages to balance a scale using several different weights, they found that by age _____, some children used logic to understand a reciprocal relationship.
A) 4 or 5
B) 7 or 8
C) 9 or 10
D) 13 or 14

Question

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The Answer of When Piaget and Inhelder asked children of different ages to balance a scale using several different weights, they found that by age _____, some children used logic to understand a reciprocal relationship.
A) 4 or 5
B) 7 or 8
C) 9 or 10
D) 13 or 14

When Piaget and Inhelder Asked Children of Different Ages to Balance