LESSON 3.1 · SS.3.E.1.1

Scarcity, Choice, and Trade

Learning goal: Explain how limited resources lead to choices and trade.

What to know

  • Scarcity exists when people want more of something than is available.
  • Because resources are limited, people, businesses, and communities must make choices.
  • Trade lets people exchange what they have for what they need or value.
  • A good economic explanation names the scarce resource, the choice, and the trade-off.
Container ship carrying goods for trade

Cargo ships move goods between producers and consumers in different parts of the world.

W. Carter · CC0 · image source ↗

Use the evidence

If one town grows oranges but needs lumber, and another has lumber but wants fruit, scarcity can encourage a trade that helps both.

WATCH & NOTICE

What Are Goods and Services?

From Federal Reserve Bank of St. Louis

Sort each example into a good or a service, then identify the buyer and seller.

Open video on YouTube ↗
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Unit 3 learning map

The school’s learning goals are connected to Florida’s Grade 3 Social Studies benchmarks so ideas are learned in context.

SS.3.E.1.1Scarcity, Choice, and TradeSS.3.E.1.3Buyers, Sellers, Supply, and DemandSS.3.E.1.2–SS.3.E.1.4Money, Saving, and SpendingSS.3.E.1.1 · SS.3.E.1.3–SS.3.E.1.4Global Trade Connects Us
Sources, curriculum references, and media credits
  1. Crystal Lake Elementary — Grade 3 Social Studies outline

    The four local units, essential questions, and learning goals.

  2. Florida DOE — State Academic Standards for Social Studies

    Current Grade 3 standards used for lesson and practice alignment; Grade 3 begins on PDF page 26.

  3. W. Carter · CC0

    Container ship carrying goods for trade