Answer:
The zone of proximal Development
Explanation:
The zone of proximal development is a developmental stage in which a child cannot carry out difficult or tedious tasks or skill on his or her own but can be done through guidance or by been assisted.
It is the difference between what the child can do without help and what he can't do with help.
Therefore the child has to be guided or help by his parents or older siblings who are more knowledgeable than him.
How much larger did the Louisiana Purchase make the United States?
The Louisiana Purchase doubled the size of the US.
<span>Substitution Effect, The idea that as prices rise (or incomes decrease) consumers will replace more expensive items with less costly alternatives</span>
