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U.S. History Collection for middle and high school - PBS LearningMedia
CKHG: A History of the United States - Core Knowledge
8th Grade U.S. History Curriculum & Lesson Plans - Time4Learning
American History Online Textbook - Students of History
Learn 8th grade social studies - IXL
Top 12 Lessons & Units for 8th Grade History Curriculum
8th Grade U.S. History Educational Resources | Education.com
8th Grade Social Studies: US History - Study.com
8th grade U.S. History resources - TPT
8th Grade American History/U.S. History Lesson Plans