Introduce or review the term, impeachment, and discuss its purpose and process. Lesson includes U.S. Constitution and Texas Constitution impeachment process. Use the images and facts found on the first day cover, an envelope with commemorative stamp, appropriate postmark and artwork, to learn about Barbara Jordan, first African American woman to serve in the Texas legislature then on the Judiciary committee in the federal House of Representatives. Lesson includes an excerpt of her speech during the President Nixon hearings on impeachment. How do citizens according to Jordan uphold the common good?