Unit 4 Checkpoint: Economic Systems
Covers Weeks 12–14: Banks, Interest, Inflation
Purpose
This checkpoint is a brief pause before the capstone project to make sure learners have a solid grasp of how larger economic systems work.
Age-Banded Learning Goals
Ages 8–9: Guided foundation
Learners should be able to:
- explain that banks keep records of money
- describe interest as extra money earned from saving or extra money owed from borrowing
- explain that inflation means prices can rise over time
- use simple examples to notice that money changes over time
Ages 10–12: Core path
Learners should be able to:
- compare banks, saving, interest, and inflation as connected systems
- explain how interest and inflation affect choices over time
- use simple multi-step examples to describe saving growth or changing buying power
- connect these system ideas to budgeting and planning
Ages 11–13: Optional extension
Learners may also:
- compare simple and compounding growth in guided examples
- analyze historical price comparisons or timeline math with support
- discuss why different interest rates or inflation patterns change long-term outcomes
Key Concepts to Check
| Week | Core Idea | One-Sentence Summary |
|---|---|---|
| 12 | Banks | Banks are trusted systems that store, track, and move money through accurate records |
| 13 | Interest | Money can grow over time when saved (earning interest) or cost more over time when borrowed (paying interest) |
| 14 | Inflation | Prices tend to rise over time, which means the same amount of money buys less in the future |
Quick Check Questions
- Banks: What is the main job of a bank? Why do people trust banks with their money?
- Interest (saving): If you save $10 in a bank and the bank adds $0.50 each month, how much do you have after 6 months?
- Interest (borrowing): If you borrow $10 from a friend and have to pay back $12, what is the extra $2?
- Inflation: A candy bar cost $0.50 twenty years ago and costs $1.50 today. What happened?
- Connection: Why does inflation make earning interest on savings even more important?
Systems Thinking Check
This unit asked learners to think about systems, not just personal decisions. Check whether they can see the connections:
- Banks → store money as records (connects to digital money in Week 7)
- Interest → rewards saving and charges for borrowing (connects to opportunity cost in Week 9)
- Inflation → prices rise over time (connects to why budgets need to be flexible, Week 10)
- All three together → explain why "hiding money under a mattress" loses value over time
Facilitator Observation Checklist
After completing this unit, most learners should be able to:
- Describe a bank's core function: store, track, and move money
- Explain interest in both directions: earning (saving) and owing (borrowing)
- Define inflation as prices rising over time
- Explain purchasing power: the same dollar buys less when prices go up
- Connect all three systems concepts: banks hold your money, interest helps it grow, inflation means it needs to grow
Reflection Activity (Optional)
The Mattress Test: "Imagine you put $100 under your mattress and left it there for 20 years. What would happen? Now imagine you put $100 in a bank that pays interest. What would happen? Which person is better off, and why?"
Timeline: "Draw a timeline showing a $10 bill moving through the system: deposited in a bank → earns interest → prices go up → what can it buy?"
Discuss it: "Is borrowing money always bad? When might it make sense to borrow, even though you have to pay interest?"
Facilitator Notes
- This checkpoint should take 10–15 minutes.
- The simplified model notes in Weeks 12–14 are important to reference. These are introductory concepts. Compound interest, APR, and monetary policy should stay guided extension topics, not baseline expectations for every learner.
- Digital safety reminder: Connect banks and online accounts by asking: "What are the Stop, Check, Protect rules for banking online?"
- The bridge to Unit 5: "You now understand how your money works and how the bigger system works. For the last four weeks, you are going to create something — using everything you have learned."
Companion Materials
- Glossary — Review key vocabulary from Weeks 12–14