Two-year-old Nick is trying to put a puzzle together. Nick's father begins by offering direct instructions but gradually withdraws support as Nick's competence with the task increases. This is an...

Extracted text: Two-year-old Nick is trying to put a puzzle together. Nick's father begins by offering direct instructions but gradually withdraws support as Nick's competence with the task increases. This is an example of Oa Sscaffolding Ob. cooperative learning conservation C. Od.8roup work