GRADE 9 SOCIAL STUDIES · CHAPTER 3
Economics, resources & choices
Study each lesson in order, or choose the idea you need today.
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Economic models
Read a simple supply-and-demand table
Interpret an invented market table while separating stated quantities from broader price predictions.
AN EXAMPLE FROM THIS CHAPTER
At a price of 4 tokens, buyers demand 30 items and sellers supply 20. What shortage is shown at that price?
Show answer & explanation
10 items
Demand exceeds supply by 30 − 20 = 10 items.
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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