Examine the role of reform in American society from 1877 to the present, history homework help

Answer the following prompt
in an extended (long) essay: Examine the role of reform in American society
from 1877 to the present. Looking at Populism, Progressivism, the New Deal, the
Great Society, the New Left and the New Right, discuss how different groups of
people tried to change society and write about why they tried to implement
these changes. Make sure you discuss each of the movements above.