Today's document from the National Archives is a sketch of where Rosa Parks was seated on the day she refused to give-up her seat. Along with the sketch, the National Archives has posted a lesson plan using the sketch. The National Archives also posted lesson plans about Jackie Robinson and the Civil Rights Movement.
Learning to Give has a lesson plan about Rosa Parks that is appropriate for elementary school use.
Teaching Tolerance has lesson plans about Rosa Parks that are appropriate for middle school and high school students.
History.com has an interactive timeline of the Civil Rights Movement. In that timeline is a good section about Rosa Parks and the bus boycott.
Here is a short clip of an interview with Rosa Parks.