As you prepare to assemble a project on the 1920s, you may find these various links helpful.
Click here for a link to primary documents related to major controversies of the 1920s, and follow this link to a timeline of the 20th century. If you like music, check out this link and this link to, pardon the puns, get in step and stay in tune with 1920s music. Check out the Ken Burns documentary on jazz, too. If you like cultural history--things like art, architecture, fashion, shopping, and literature--find the 1920s here.
For broad coverage of the 1920s, from the rise of baseball to Prohibition, visit here and here. Let your interests take flight with Charles Lindbergh, or Amelia Earheart. And if you want to return to W.E.B. Du Bois or Helen Keller, you may do so.
If you like poetry, spend the time to check out the rhymes (and stories) of Langston Hughes (and here and here) and Countee Cullen (and here).