I was a fourth grade teacher who took students to Gettysburg, Pennsylvania. One of the trips we took was an audio tour of the battlefield. It has only been used once.
Gettysburg Field Guide: The Ultimate Guide to the Battle of Gettysburg: TravelBrains Battlefield Audio Tour
To understand the bloodiest battle of the Civil War, you have to see it! Battlefield Audio Tour and Guidebook. The Guidebook (56 pages) has battle maps: 17 detailed maps show you the troop movements and where te action occurred. Important battlefiled locations, like the Slaughter Pen and the Valley of Death are highlighted.
Historic Photographs: The Guidbook is loaded with photographs of the men who fought the battle and the devastation they caused. In many cases the photographs were taken shortly ater the battle. The Images correspond with the narration and provide a haunting reminder of the cruelty of the American Civil War.