3.9

Math3rd Grade

Knowledge and Skills Statement (Standard Cluster)

The student applies mathematical process standards to manage one's financial resources effectively for lifetime financial security

Texas Essential Knowledge and Skills for Mathematics

Cluster contents

Student Expectations in This Statement

3.9 is a knowledge and skills statement. These are the student expectations under it.

Teacher's field guide

What This Cluster Means

What Students Need to Do

Students explain how work, education, and skills can affect income, and how scarce goods may cost more. They compare planned and unplanned purchases and sort choices involving income, spending, saving, borrowing, and giving. They explain credit repayment and make savings plans for goals such as college.

What Mastery Looks Like

Given a money scenario, students identify income, spending, saving, credit, and charitable giving. They explain how skills can increase income, why scarcity can raise prices, and how planned spending avoids problems. They can create a savings plan and explain that borrowed money must be repaid with interest.

Common Misconceptions

Students may think income only comes from a salary and is unrelated to skills or education. They may assume credit is free money, interest is optional, or saving means keeping whatever remains after spending. Some believe scarce items always cost more or that unplanned purchases have no cost beyond the price.

How to Assess It

Give students this exit ticket: “Lena earns $15 walking dogs, saves $5 for college, donates $2, and wants a scarce $12 toy today.” Ask them to label each money decision, predict the toy’s price, choose cash, saving, or credit, and justify the choice.

Lesson moves

Ways to Teach It

  1. Give pairs $20 in play money and cards for wages, needs, wants, savings, credit, and donations, then have them make a budget.

  2. Discuss: Would you borrow $30 for a game that costs $40, and how would interest change your decision?

  3. Play a scarcity auction with limited classroom coupons, then compare winning prices and explain why some coupons cost more.

  4. Compare two grocery ads, identify scarce or seasonal items, and plan how to spend, save, and donate from a sample weekly income.

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Related Standards

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