Answer:
Zone of proximal development
Explanation:
The zone of proximal development was proposed by Vygotsky. According to this term, this is the distance between the actual development of solving the problem and the development that take guidance and the help of others to solve the problem is called the zone of proximal development.
Vygotsky has a belief that when the child is near the development and a little assistance will work for children or a student as a booster. Thus here Foo May assisting her three-year-old son Alex to build the tower of the logo. Alex needs lots of help so that her mother steps back and tells do it own his own. Thus here it shows Alex is at the zone of proximal development level.