During the 140th anniversary of the Battle of Gettysburg, noted Civil War historian James McPherson gave some tours of the battlefield. Part of one of these tours is available as an audio file from the NPR website along with an accompanying article and two photo galleries.

This is a good opportunity for teachers to bring a subject matter expert into your classroom to see how they “do history”. Using the accompanying photo galleries and primary sources from digital resource centers like the Library of Congress, students can listen to the 15 minute audio commentary and view the location using photos, maps and other images.

Enjoy.