character: Emperor Qin Shi Huang
topic: Architects of the Great Wall
grade: 4
subject: Social Studies
LearnActions
SearchCreate
character: Workers of the Han Dynasty
topic: Construction Techniques of the Wall
grade: 4
subject: Social Studies
LearnActions
SearchCreate
character: Ancient Chinese Engineers
topic: Building Methods of the Great Wall
grade: 4
subject: Social Studies
LearnActions
SearchCreate
character: Mongol Invaders
topic: Purpose of the Great Wall and Its Construction
grade: 4
subject: Social Studies
LearnActions
SearchCreate