Twelve-Year-Old Nathaniel Was Having Trouble Solving the Word Problems in His

Multiple Choice

Twelve-year-old Nathaniel was having trouble solving the word problems in his math homework. His dad began reading the problems aloud and emphasizing the important information. As Nathaniel started catching on, his dad gradually provided less help for each new problem. This interaction illustrates:

A) Piaget's concept of conservation.
B) Erikson's concept of industry versus inferiority.
C) Piaget's concept of concrete operational thought.
D) Vygotsky's concept of scaffolding.