Lesson 19 of 84 · Economics
⭐ 30 XP⚓ Market PortOpportunity Cost: Every Choice Has a Trade-Off
Opportunity cost is what you give up when making a choice.
🎯 Your mission
Trade-offs everywhere — find them.
⚡ The twist
Money is just a story everyone agrees to believe.
Mind = Blown
🤯 The first stock exchange was in Amsterdam in 1602 — for spices.
Then & Now
💱 Every receipt you've ever seen has this idea inside it.
Opportunity cost is what you give up when making a choice. Spending your allowance on a book means you cannot also buy a toy. Every decision involves trade-offs.
Key Facts
Money is a medium of exchange.
Needs are different from wants.
Supply and demand affect prices.
Check Your Understanding
Question 1
1 of 2What is trade?
Why this still matters
The next time you spend $1, ask: who else benefited besides you?
Stretch Challenge
Try this in real life this week.
Track every dollar you spend or get this week. Then figure out the pattern.
For the dinner table
“If you had $20 to start a business, what would you sell?”
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