This reading guide from Don't Know Much About History's sections titled "Why was Johnson Impeached" and "Who were Carpetbaggers" can be an intro or wrap up activity, or even great for when you have a sub. Students read the section from DKMAH and answer the questions in this handout. The answer key is on the last page.
You might be interested in my reading guide bundle for Don't Know Much About History, to save!
Don't Know Much About History Reading Guide Bundle