Answer:
ocd
Explanation:
obsessive compulsive disoder
This is known as communications........
Answer:
I think the only thing that relates to "economic factor" would be money.
Explanation:
It is not a or b, because it helps kids of all skill levels. Because of this, your answer should be C, because Piaget believed that teaching should be done through actually teaching students different concepts, instead of making them just know the answers. That is what cooperative learning helps do.