Elementary Level

• The American Story Book Series (David Barton’s WallBuilders)
  • Vol. 1 The Beginnings
  • Vol. 2 - Building the Republic
    
• Constitution for Kids at Freedom Factor
  
• Ducksters
• History For Kids
• Learn Our History
• The Tuttle Twins Books
• USConstitution.net
• We The Kids
• We The People Textbook, Grades 3-5
• We The People Textbook, Grades 4-6 

Middle School and High School Level

• The American Story Book Series (David Barton’s WallBuilders)
  • Vol. 1 The Beginnings
  • Vol. 2 - Building the Republic
    
• Constitution for Kids at Freedom Factor
  
• Constitutioncenter.org
• Guide to the Constitution and the Bill of Rights 
• History For Kids​
• The 5000 Year Leap - A Miracle that Changed the World
• The History Cat
• USConstitution.net
• We The Kids
• We The People Textbook, Middle School
• We The People Textbook, High School

Young Adult Level

• The American Story Book Series (David Barton’s WallBuilders)
  • Vol. 1 The Beginnings
  • Vol. 2 - Building the Republic
    
• Heritage.org
  
• Hillsdale College Online Courses
• Land of Hope, by Wilfred McClay
• Miracle at Philadelphia
• Our Republican Constitution: Securing the Liberty and Sovereignty of We The People
• The 5000 Year Leap - A Miracle that Changed the World