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Student Handout — Inflation (Week 14)

Take This Home

This handout summarizes what we learned in Week 14. Share it with your family!


What Is Inflation?

Inflation means prices go up over time. The same item costs more this year than it did last year.

A Simple Example

YearPrice of a Sandwich
2020$4.00
2022$4.50
2024$5.00
2026$5.50

The sandwich did not change — but the price did. That is inflation.


What Is Buying Power?

Buying power is how much stuff your money can actually buy.

If you have $20 and a sandwich costs $4, you can buy 5 sandwiches. If inflation raises the price to $5, your $20 now buys only 4 sandwiches.

You still have $20 — but your buying power went down.


Why Does Inflation Happen?

Inflation can happen for many reasons. Here are two common ones:

  1. More money, same stuff. If there is a lot more money floating around but the same amount of things to buy, sellers can charge more.
  2. Things cost more to make. If ingredients, materials, or energy become more expensive, the final product costs more too.

Inflation and Saving

Inflation is why saving money under your mattress is not always the best plan:

ScenarioYour $100 After 5 Years
Under your mattress (0% interest, 3% inflation)Still $100, but it buys what $86 used to buy
In a bank (3% interest, 3% inflation)About $116, and your buying power stayed about the same
In a bank (5% interest, 3% inflation)About $128, and your buying power actually grew

The lesson: To protect your buying power, your savings need to earn interest that keeps up with (or beats) inflation.


Inflation Is Not Always Bad

  • A little inflation (1–3% per year) is normal in most economies.
  • It can be a sign that the economy is active and growing.
  • It becomes a problem when prices rise much faster than people's income.

Key Vocabulary

WordMeaning
InflationWhen prices rise over time, so money buys less than before
Buying powerHow much your money can actually buy at current prices
Interest rateThe percentage a bank pays you for saving money (or charges for borrowing)
EconomyThe system of making, selling, and buying goods and services in a community or country

Try This: Inflation Detective

Ask a family member: "How much did _________ cost when you were my age?"

ItemPrice Back ThenPrice NowHow Much Did It Change?
A gallon of milk$$$
A movie ticket$$$
A candy bar$$$
A gallon of gas$$$

Were you surprised by any of the differences?


Talk About It at Home

  1. Have you noticed any prices going up recently? Which ones?
  2. Why is it important to save money in a way that earns interest?
  3. If inflation is 3% per year, what happens to your piggy bank savings over 10 years?