* The school district: Districts adopt textbooks for all their schools, and these choices can change over time.
* The state: State standards and curriculum frameworks influence textbook selection.
* The specific course: Is it US History, World History, AP US History, AP World History, or another specialized history course? Each will have a different textbook.
* The teacher: While the district might provide a textbook, teachers sometimes supplement with additional materials.
To find out what books *specific* sophomores are using, you'd need to ask the students, their teachers, or check the school's curriculum guide (often available online).
However, some *commonly used* history textbook publishers for high school include:
* Pearson: Often publishes comprehensive textbooks covering various historical periods.
* McGraw-Hill: Similar to Pearson, they offer a wide range of high school history texts.
* Cengage: Another major publisher with offerings in history.
* Amistad: Focuses on diverse perspectives in history.
These publishers produce multiple textbooks, each tailored to different grade levels and course focuses. You won't find one definitive "sophomore history book."