GRADE 9 SOCIAL STUDIES · CHAPTER 2
History, sources & inquiry
Study each lesson in order, or choose the idea you need today.
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- Choose a chapter
- Study a lesson
World history
Distinguish effects in a historical exchange network
Use a supplied historical scenario to separate movement of organisms, goods and ideas from claims about impacts.
AN EXAMPLE FROM THIS CHAPTER
A historical account documents a crop introduced to a new region and later grown there. Which kind of movement is central?
Show answer & explanation
biological exchange
A living crop species moved between regions.
Curriculum & source notes
These are original Little Play study books organized around U.S. school topics. The official curriculum references below guide topic scope and progression. Coverage is selected, not a complete curriculum or a verified match to every state standard. They are not copies of a publisher’s textbook. Check your school’s syllabus and book edition.
High-school courses can be taken in different years. Choose the topic that matches the student’s current course.
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