What big announcement does Mama make to Walter near the end of the scene? How is this decision symbolic or important? Why does Mama decide to do this? Support answer with details from the text. Act 2 Scene 2

Mama realizes that her son is in a crisis and makes an important decision. She says, BLOCKQUOTE [There ain't nothing as precious to me...There ain't nothing worth holding on to, money dreams nothing else-if it means-if it means it's going to destroy my boy...I'm telling you to be the head of this family from now on like you suppose to be.] Lena then gives Walter the rest of the insurance money to invest as he pleases. After giving him $3,500 as a down payment, Mama gives the remaining $6,500 to Walter, asking only that he put aside $3000 for Beneatha's medical school education. Walter is amazed that his mother trusts him with the money. Travis enters the room, and Walter, excited about his new-found responsibility, tells his son about his hopes and dreams of working in a office, driving a nice car, having a nice house, and sending his son to college. Mama realizes that her attempt to fix the problem is insufficient. The money represents a transfer of power. Walter is now the head of the Younger household. For the first time, he is trusted to make critical decisions that affect not only himself, but his entire family.