Progressivism is an era of reform known that developed in the late 1800's.The early 20th century was an era of business expansion and progressive reform in the United States. The progressives, as they called themselves, worked to make American society a better and safer place in which to live. They tried to make big business more responsible through regulations of various kinds. They worked to clean up corrupt city governments, to improve working conditions in factories, and to better living conditions for those who lived in slum areas, a large number of whom were recent immigrants from Southern and Eastern Europe. Many progressives were also concerned with the environment and conservation of resources.
Progressive Era to New Era, 1900-1929 - Provides a brief explanation of the Progressive Era, with links to specific topics that might be of further use to you as you progress through this webquest.
http://memory.loc.gov/learn//features/timeline/progress/progress.html
The image above of Upton Sinclair symbolizes that desire to better the conditions of the working class. Look at the Glogster below, watch the video embedded and answer the questions that refer to Sinclair.