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An older teen at a finance desk making a money decision with coin jars and a growth curve

Ages 15–18 · Grades 9–12 · Personal Finance

LedgerQuest

Real money decisions have real trade-offs. Here you can make them in a risk-free sim, see how each one plays out, and check what you know — no jargon, no lectures, nothing sent anywhere.

Open the Decision Lab Time Multiplies

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Decision Lab Make a money call and see how it plays out. Time Multiplies Watch small savings grow over time. Pay It Down Beat the minimum-payment trap — slide your payment, watch the interest. Credit Score Lab Predict what moves a credit score — then see the five factors that decide it. Budget Split money into needs, wants, and save. Borrow or Wait? Weigh borrowing now against paying more later.

The Decision Lab ★ the main event

Set a money goal, then work through real situations — a cracked phone, a first paycheck, a 25%-interest card, renters insurance, what comes after high school. Every choice moves your cash, savings, and debt, and you see exactly how it plays out. Then reflect on how your choices served your goal.

Open the Decision Lab →

Time Multiplies 📈 new

Compound interest curves upward — slow at first, then fast — and almost everyone underestimates it. Predict a money scenario (start early or save more later? a penny or a million?), then see the real numbers side by side. The single most powerful teen finance lesson: time does the work, and you have the most of it.

Try “Time Multiplies” →
Who you’ll meet — the money habits 10

Not mascots — everyday people, each one showing a single money idea in action. You’ll run into them in the Decision Lab.

  • Calla — weighs needs vs wants when money is tight
  • Yusuf — reads a paycheck — gross, net, and where the rest went
  • Rosa — pays herself first and builds an emergency fund
  • Priya — shows how interest quietly compounds over time
  • Cyrus — knows the real cost of borrowing — and how credit works
  • Nadia — manages risk: when insurance and spreading out make sense
  • Devon — sees the opportunity cost hiding in every purchase
  • Odette — watches inflation change what money can buy
  • Marcus — keeps a budget that flexes with real life
  • Hollis — the mentor — asks the questions that make a plan yours

Check what you know

Sixteen short kits — from money basics to a capstone life budget — anchored to national personal-finance standards. Hints when you want them; your progress stays on this device.

1. Money Basics Money basics: needs vs wants, income, spending choices · 25 questions 2. Needs vs Wants & Value Prioritizing needs vs wants and getting value per dollar · 25 questions 3. Budgeting Building and balancing a budget · 25 questions 4. Income, Gross vs Net & Taxes Earning income: gross vs net pay, withholding, taxes, pay types · 25 questions 5. Saving & Goals Saving: pay-yourself-first, goals, emergency fund, SMART targets · 25 questions 6. Banking & Interest Saving: bank accounts, simple interest, APY, fees, account safety · 25 questions 7. Compound Growth Saving: compound interest, interest-on-interest, Rule of 72, time value of money · 25 questions 8. Debt & the Cost of Borrowing Managing credit: principal, interest, how a balance grows, cost of borrowing · 25 questions 9. Credit & Credit Scores Managing credit: what credit is, credit reports, what moves a score · 25 questions 10. Managing Risk & Insurance Managing risk: pooling risk, when insurance makes sense, premiums, deductibles · 25 questions 11. Diversification Basics Managing risk: not-all-eggs-in-one-basket, spreading risk (concept, non-gambling) · 25 questions 12. Inflation & Purchasing Power Spending/investing: inflation, purchasing power, why prices rise over time · 25 questions 13. Consumer Decisions Spending/decision-making: comparison shopping, unit price, marketing + scam literacy · 25 questions 14. Big Purchases Decision-making: cars, phones, rent — trade-offs, total cost, financing choices · 25 questions 15. Paying for the Future Decision-making/earning: college, training, apprenticeships — cost, aid, ROI (anti-evangelism) · 25 questions 16. Capstone: Your Life Budget Decision-making: integrating income, spending, saving, credit, risk into a life plan · 25 questions
How it works

LedgerQuest is written to trust you — no shame about money, and no single “right” life path (some choices simply fit different goals). Your progress is saved only on this device: no accounts, nothing sent anywhere.

Mixed practice — revisit what you've learned A short round that shuffles questions across the kits you've played, brought back when they're ready to review (spaced out so it sticks).

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