Lesson
How CDs & Share Certificates Work
Summary
Locking your money away can actually pay you more than keeping it handy. This lesson explores how CDs and share certificates trade liquidity for higher interest, plus the difference between simple and compound growth.
Bellringer: The Lock Box Bargain
- Pose the $50-for-12-months question and let students weigh in.
- Surface gut reactions before defining liquidity.
Instruction
- Define CDs, share certificates, and early-withdrawal penalties.
- Connect the liquidity–interest tradeoff to simple vs. compound growth.
Discussion: Timing the Rate Gamble
- Debate whether a 5-year CD makes sense when rates are rising.
- Push students to see compound interest as a double-edged sword for savers vs. borrowers.
Activity: CD Calculator & Banking Game
- Experiment with deposits, terms, and rates in the Banzai CD Calculator.
- Continue the Banking game to run a financial institution.
Wrap-Up & Assessment
- In your own words, explain how compound interest acts like a "money snowball" compared to simple interest.
- What's the difference between a CD and a Share Certificate?
| Est. Time | Activity | Description |
|---|---|---|
| 5 min | Bellringer: The Lock Box Bargain |
|
| 10 min | Instruction |
|
| 7 min | Discussion: Timing the Rate Gamble |
|
| 20 min | Activity: CD Calculator & Banking Game |
|
| 3 min | Wrap-Up & Assessment |
|
Lesson Prep
CD Calculator
Learn how a certificate of deposit (CD) works and use our calculator to estimate how much your savings can grow with a fixed interest rate over time.
Banking
Students run a small financial institution and learn about accounts, interest, and loans.
Class Presentation
Includes an 18-slide deck with teacher notes. Present from Banzai, download a PDF, or copy it to Google Slides.
Presentations, Ready to Go
- Built-in PresentationPresent full screen, straight from Banzai
- Copy to Google SlidesMake an editable copy for your class
- Download or PrintSave as a PDF or print
- Teacher NotesSlide-by-slide guidance, printable as one handout
Unit 5: Banking & Account Management
Understanding Accounts
Your bank app balance and your spending power aren't the same number. This lesson teaches middle schoolers to navigate digital dashboards, monthly statements, and transaction cards.
How CDs & Share Certificates Work
Locking your money away can actually pay you more than keeping it handy. This lesson explores how CDs and share certificates trade liquidity for higher interest, plus the difference between simple and compound growth.
The Cost of Banking
A $2 soda can cost $37 when you don't track your account balance. This lesson covers common banking fees, the difference between online balances and account statements, and how to reconcile accounts to avoid costly surprises.
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