This teacher’s guide complements Window of Time, written by children’s author Karen Weinberg for all youths 8 to 10 years old. Window of Time presents a glimpse into Civil War history through an exciting and carefully written narrative based on the Battle of Gettysburg. Offering suggestions and options for the teacher, this guide features more than twenty-five student pages, including informal assessments and a rubric for comprehension. Additional information includes an overview of the plot and historical notes on Westminster, Maryland, and the Battle of Gettysburg, Pennsylvania, during the Civil War.