What's Covered Here
Complete reference for every interactive element in Unit 3.3
Unit 3.3 — Credit, Debt, and the Future — is the unit that bridges financial concepts to near-term decisions. Most AOBF students will face credit cards, auto loans, and student loan decisions within four years of Grade 9. This unit provides the tools to make those decisions with full information about their true cost — and the historical context to understand how the credit system has been used as an instrument of economic exclusion in communities like Birmingham-Bessemer. Topic 6 (Historical Redlining and Credit Inequity) carries the same depth as Topic 4 in Unit 3.1 and should receive the same amount of class time.
| Tool | Location | Focus |
|---|---|---|
| 🎯 FICO Factor Match | Study Guide → Games tab | 8 credit actions → identify which of the 5 FICO factors each primarily affects |
| 💸 True Cost of Debt | Study Guide → Games tab | 6 debt scenarios — calculate total interest, identify minimum payment trap, spot negative equity, understand 0% promotions |
| ⚖️ True or False | Study Guide → Games tab | Credit score, report, and debt facts vs. myths — 10 statements including hard/soft inquiry and redlining history |
| 💳 Debt Calculator | Study Guide → Debt Calculator tab | Full amortization calculation + opportunity cost display; three quick-load presets (credit card, auto, student loan) |
| ✏️ Unit Quiz | g9-3-3-quiz.html | Comprehensive mastery — 20 questions from 23-question bank including HOLC/redlining history |
🎯 FICO Factor Match
Eight credit actions — identify which FICO factor each one primarily affects
Eight credit action cards, each presented with five factor choices. Students select which FICO factor the action primarily affects. Designed to teach not just factor names but the behavioral implications of each — which specific actions build or damage which parts of the score.
Answer Key — All 8 Actions
| Action | FICO Factor | Key Insight |
|---|---|---|
| Miss a credit card payment 30 days late | Payment History (35%) | Single late payment can drop score 50–100 points; stays on report 7 years |
| Pay down card balance from $950 to $200 on $1,000 limit | Amounts Owed / Utilization (30%) | Reduces utilization from 95% to 20%; updates within one billing cycle |
| Apply for three new credit cards in one month | New Credit (10%) | Three hard inquiries; signals credit-seeking behavior |
| Keep a 9-year-old credit card open even when rarely used | Length of History (15%) | Preserving average account age; closing would shorten history |
| Set up autopay for every recurring bill | Payment History (35%) | Protects the most heavily weighted factor; eliminates risk of accidental late payments |
| Open a student loan alongside existing credit card accounts | Credit Mix (10%) | Adds installment loan to revolving credit profile; demonstrates management of different credit types |
| Close your oldest credit card account | Length of History (15%) | Reduces average account age; account disappears from average history calculations at closing |
| Charge $1,800 on a $2,000 limit card for car repairs | Amounts Owed / Utilization (30%) | 90% utilization on that card signals financial stress even if paid in full next month |
After completing the game, ask: "Which two factors together represent 65% of the FICO score?" (Payment History 35% + Amounts Owed 30% = 65%.) "And both of these are controlled entirely by behavior — not by income, not by age, not by background." This is the empowerment point: two behavioral choices (pay on time, keep utilization low) control nearly two-thirds of the most important financial number in American lending.
💸 True Cost of Debt
Six debt scenarios — total interest, minimum payment trap, negative equity, 0% promotions
Six scenarios using AOBF student names. Covers: credit card minimum payment total cost, auto loan total interest, student loan monthly payment, credit utilization impact, auto loan negative equity, and 0% promotional APR mechanics. Answer choices are shuffled each attempt.
Scenario Key
| # | Student / Situation | Answer | Key Formula / Concept |
|---|---|---|---|
| 1 | Destiny — $2,500 card at 24% APR, minimum only | ~$4,200+ in total interest | Minimum payment trap: 10+ years repayment, total interest exceeds principal |
| 2 | Marcus — $18,000 auto at 9% APR, 5 years | ~$4,380 total interest | $373/mo × 60 = $22,380 total; $22,380 − $18,000 = $4,380 |
| 3 | Jerome — $28,000 student at 6.5% APR, 10 years | ~$317/month | Amortization formula M = P[r(1+r)^n]/[(1+r)^n-1] |
| 4 | Aaliyah — $1,800 on $3,000 limit card | 60% utilization — hurts FICO score significantly | $1,800/$3,000 = 60%; above 30% threshold; represents 30% of FICO |
| 5 | DeShawn — $30,000 car, no down payment, 20% depreciation | Immediate negative equity ~$2,500 | Car worth ~$24,000 after year one; balance still ~$26,500 with slow early amortization |
| 6 | Brianna — $3,000 at 0% for 18 months, then 26% APR | Must pay in full before 18 months = $167/month required | 0% expires; remaining balance subject to 26% APR; some cards charge retroactive interest |
Scenario 1 is the most important to pause on. Ask students: "How much did Destiny spend to borrow $2,500?" (~$6,700 total.) "What could she have bought with that extra $4,200 if she'd paid the balance in full immediately?" This reframes minimum payments from a convenience into a purchase — she is buying time to pay, at 24% APR. Load the Debt Calculator with credit card preset to demonstrate in real time.
⚖️ True or False
Credit and debt facts vs. myths — 10 statements
Answer Key — All 10 Statements
| # | Statement (summarized) | Answer |
|---|---|---|
| 1 | Checking your own credit score is a hard inquiry that lowers your score | FALSE — soft inquiry; no score impact |
| 2 | Payment History is the largest FICO factor at 35% | TRUE |
| 3 | Carrying a small balance helps build credit score | FALSE — persistent and costly myth; no score benefit whatsoever |
| 4 | Three bureaus are required to maintain identical information | FALSE — bureaus collect independently; same account may differ across reports |
| 5 | Closing old accounts generally improves credit score | FALSE — reduces average account age and available credit |
| 6 | FCRA gives right to dispute; bureau must investigate in 30 days | TRUE |
| 7 | Redlining was primarily an informal private practice | FALSE — formalized by HOLC (federal agency) and FHA underwriting standards |
| 8 | Early extra principal payments save more interest than late ones | TRUE — compound interest logic: reduce the base, eliminate future interest |
| 9 | Credit report and credit score are the same thing | FALSE — report is underlying data; score is mathematical summary derived from it |
| 10 | Thin file person may have been financially responsible but lacks scoreable history | TRUE — FICO can't measure what it can't see; related to credit access exclusion history |
Statement 3 (carry a balance myth) is the most consequential misconception — students have often heard this from adults who believe it. Statement 7 (redlining as private vs. federal) and Statement 9 (report vs. score) are the most commonly missed factual items.
💳 Debt Cost Calculator
Full amortization with opportunity cost — three presets for classroom demonstration
Calculates monthly payment, total interest, total amount paid, and interest as a percentage of principal for any loan. Also displays the opportunity cost: what the interest payments could grow to if invested instead at a specified rate (default 7%). Three quick-load presets: Credit Card $2,000 at 24%/5 years, Auto Loan $25,000 at 8%/5 years, Student Loan $30,000 at 6.5%/10 years.
Quick-Load Preset Results
| Preset | Loan Details | Monthly Payment | Total Interest | Interest % of Principal |
|---|---|---|---|---|
| Credit Card $2k | $2,000 at 24% APR, 60 months | ~$57/month | ~$1,440 | 72% — for every $1 borrowed, 72¢ more paid in interest |
| Auto Loan $25k | $25,000 at 8% APR, 60 months | ~$507/month | ~$5,420 | 22% |
| Student Loan $30k | $30,000 at 6.5% APR, 120 months | ~$341/month | ~$10,920 | 36% — over a third of the original loan paid back as interest |
About the Opportunity Cost Calculation
The calculator uses the future value of an annuity formula to estimate what the monthly interest payments could grow to if invested instead. The formula: FV = PMT × [(1 + r)^n − 1] / r, where PMT is the average monthly interest payment, r is the monthly investment rate, and n is the number of months. This is an approximation (actual monthly interest payments decline over the loan term); it illustrates the concept accurately without requiring the more complex declining-balance calculation.
Load all three presets in sequence: credit card first (highest interest %), then auto loan, then student loan. Ask: "Which loan costs the most as a percentage of what you borrowed?" (Credit card at 72%.) "Which loan costs the most in absolute dollars?" (Student loan at $10,920.) These are different answers because total interest depends on both rate and term. The student loan is longer, so even at a lower rate, total interest is higher. This teaches students to ask both questions before signing any loan agreement.
✏️ Unit Quiz Engine
20 questions from 23-question bank · FICO, reports, debt cost, and credit history
Covers all six topics including one auto loan total interest calculation. The quiz places particular weight on the "carry a small balance" myth (directly asked), the HOLC/redlining history (two questions: definition/federal agency question and the contract buying question), and the soft vs. hard inquiry distinction. These are the highest-error areas.
Question Bank Coverage
| Type | Count | Topics |
|---|---|---|
| Multiple Choice | 15 | FICO range and bands, Payment History as largest factor (35%), credit utilization calculation, AnnualCreditReport.com and FCRA, FCRA dispute process, hard vs. soft inquiry, auto loan total interest calculation, HOLC/redlining definition, minimum payment trap, amortization principal-to-interest shift, combined utilization calculation, credit desert and redlining correlation, closing old accounts impact, DTI and post-graduation flexibility, carry-a-balance myth |
| True / False | 8 | Checking own credit = hard inquiry (false), HOLC as private organization (false), adverse action FCRA rights (true), paying full balance builds credit (true), three bureaus identical (false), contract buying rights (false), thin file and responsible behavior (true), early extra principal payments (true) |
Grading Scale
Highest error-rate questions
The "carry a small balance" myth question and the HOLC-as-federal-agency question are the most commonly missed. Students who score below 70% should re-read Topics 1 and 6, play the FICO Factor Match and True/False games, and use the Debt Calculator credit card preset before retaking.
🎓 Facilitator Notes
Sequencing, NAF/AOBF alignment, and Heritage-as-Capital discussion anchors
Recommended Learning Sequence
- 1Study Guide Topic 1 — FICO Score and Five Factors (~20 min). Walk through the score bar and five factor cards. Key stop: the interest rate impact example. Show the $98,000 mortgage difference between an excellent and fair score. This is the financial stakes of everything that follows.
- 2FICO Factor Match game (8–10 min). Post-game: ask which two factors together represent 65% and emphasize both are purely behavioral.
- 3Study Guide Topics 2–3 — Credit Report and Disputing (~20 min). Walk through the annotated sample report together. Point out the error in the auto loan balance. Ask: "How much could this error cost you if a lender denied credit or increased your rate because of it?" Run through the five dispute steps.
- 4Study Guide Topic 4 — Loan Types (~15 min). The comparison table is the primary content. Key stops: the minimum payment trap definition (stress that it is designed for lender benefit, not borrower relief) and negative equity (use the auto loan preset in the Debt Calculator).
- 5Study Guide Topic 5 + Debt Calculator (~20 min). Load all three presets. Show the opportunity cost display for each. Key question: "What would the interest you pay on a 30-year mortgage grow to if invested instead?" This makes the cost of debt visible in wealth-building terms.
- 6True Cost of Debt game (10–12 min). Pause on Scenario 1 (minimum payment trap). Make the "cost to borrow $2,500" calculation explicit.
- 7Study Guide Topic 6 — Historical Redlining and Credit Inequity (~25 min). This section requires full time allocation. Read the timeline together. The HOLC maps → FHA guidelines → contract buying → credit desert progression is the core narrative. Allow discussion. Connect explicitly to Birmingham-Bessemer.
- 8True or False game (8–10 min). Exit ticket — below 7/10 means re-reading Topics 1 and 6 before the quiz.
- 9Unit Quiz independently. 70% minimum passing score.
Heritage-as-Capital Discussion Anchors
- 🏠Credit as the Gateway Denied"Homeownership is the primary wealth-building mechanism for working-class families. Mortgage credit is the mechanism that makes homeownership accessible. Redlining was the mechanism that denied that credit to Black families. You are studying credit literacy in part because your grandparents' generation was systematically denied it." Ask: what changes when AOBF students understand credit well enough to build it, protect it, and dispute errors in it?
- 📄The Contract Buying Legacy"Contract buyers in Birmingham-Bessemer paid monthly payments like a mortgage — but received no equity, no title, and no protection. One missed payment meant losing everything." Ask: what does this tell us about the importance of having access to mainstream, regulated lending rather than predatory alternatives? And what does it tell us about why reading the terms of any credit agreement carefully is not optional?
- 🎓Building Credit as Community Action"An AOBF student who builds an excellent credit score, avoids the minimum payment trap, disputes errors on their credit report, and finances homeownership through informed borrowing is doing something that was deliberately made impossible for their grandparents. That is not just personal finance. That is the implementation of Heritage as Capital."
NAF / AOBF Alignment
| Unit 3.3 Topic | NAF Academy of Finance Standard |
|---|---|
| FICO score and five factors | Personal Finance — creditworthiness, credit scoring, and consumer credit |
| Reading a credit report and disputing errors | Personal Finance — consumer rights, FCRA, financial record keeping |
| Auto loans, student loans, credit cards | Personal Finance — consumer credit products; connects to Banking and Financial Services track |
| Amortization, total cost of debt, opportunity cost | Investments — time value of money; connects to financial mathematics applications |
| Historical redlining and credit inequity | Economics — economic history, policy analysis, systemic factors in financial access |