I guess you better not waste your time with no fools.
Walter drunkenly stumbles into Beneatha's tribal dancing and record playing. He joins in the spirit. Here we discover Flaming Spear. This important because George comes in, and this event shows a contrast between them and him.
I'm telling you to be head of this family from now on...
Mama has been gone, and she stops Ruth from beating Travis. He was also gone. Mama gives him a good piece of news. This is important because it is a turning point in their lives! They're going to own a home >>in a white neighborhood<<.
Negro families are happier when they live in their own communities.
Beneatha is put off by George again. Mama shows her support for once. It is appreciated. This is important because the family never values her doubts about George, so it shows a new leaf has been turned.
It is discovered that Walter hasn't been going to work. Mama decides that she's affected him badly. He is named head of the house. This is important because, until now, Mama was head of the house. He is now in control and can pursue his dreams.
Mr. Lindner comes from the area of their new home. He offers to buy their house from them at the expense of their profit. Ultimately, he offends them and achieves nothing. The importance of this is that it shows the racism that is used against the hardworking black family once they earn what they have been working toward.
Bobo tells Walter Willy had taken the money and left. This is very much devastating. This leads to a beating from Mama. This important to the play because now they have nothing but that new house, not even money for schooling for Bennie.