Florida SS.8.FL.3.4

Social Studies8th GradeSaving

The Standard

Explain that, when interest rates increase, people earn more on their savings and their savings grow more quickly.

Florida Next Generation Sunshine State Standards for Social Studies

Teacher's field guide

What Students Need to Do: Students compare how the same deposit grows at different interest rates over the same period. They explain how a higher rate produces more interest earnings.
What Mastery Looks Like: Students calculate or interpret interest earned on two savings accounts. They identify the account that grows faster and support the choice with numbers.
Common Misconceptions: Students may treat an interest rate as a fixed dollar amount. They may confuse interest earned on savings with interest paid on loans or ignore differences in time and starting balance.
How to Assess It: Give students two accounts, each with $500 for one year, one earning 2% and one earning 5%. Ask which earns more and how much each earns.

Lesson moves

Give pairs play money and account cards, then have them calculate and build the interest earned at 1%, 3%, and 5%.
Ask students to write why comparing interest rates is fair only when the starting balance and saving period are the same.
Play Account Match, where students pair deposit cards with interest rates, earnings, and final balances.
Compare posted savings rates from two banks or credit unions and calculate one year of interest on a $1,000 deposit.

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