Set your sights on America's expansion and explore 15 different social studies texts with topics ranging from the Louisiana Purchase to the Civil War. Leveled Texts for Social Studies: Expanding and Preserving the Union is an award-winning resource designed to help all students comprehend important historical people and events through high-interest social studies material written at four different reading levels. Each text is presented in a two-page format and complemented with comprehension questions written at each reading level. Give all students access to the curriculum and build content-area literacy skills with these seamlessly differentiated texts.