CCSS Mathematics, Grade 8

- Expressions & Equations - Analyze and solve linear equations.
- 7. Solve linear equations in one variable.

Provide each student with a copy of the “Family Income” worksheet.

Family Income Worksheets (pdf)

Have each student estimate first, then determine the actual total yearly family income using the data provided on the worksheets.

Following the worksheet exercise, conduct a class discussion for students to express their feelings about potentials for income.

Eighth Grade – Pre-Algebra

Standard 2: Students will use proportion and similarity to solve problems

Objective 2: Solve a wide variety of problems using ratios and proportional reasoning

Divide the students into small groups. Assign each group a different savings instrument. For example, money market funds, treasury bonds, treasury bills, savings accounts, and certificates of deposits. Ask students to do some research to answer the following questions.

- What is this savings instrument called?
- Does it require a minimum balance?
- Are there fees or penalties if you withdraw your money before a specified time?
- Is this savings method more or less risky than savings bonds?
- What is the interest rate on this savings instrument?
- Is interest compounded annually, semi-annually, quarterly, daily?
- How is the purchasing power of the savings protected from inflation?

Complete Lesson Plan (pdf) (see page 10)

Eighth Grade – Pre-Algebra

Standard 2: Students will use proportion and similarity to solve problems

Objective 2: Solve a wide variety of problems using ratios and proportional reasoning

This lesson focuses on a real-life business application of ratios - the price to earnings ratio used when looking at stocks. The lesson contains a power point presentation, as well as a worksheet and answer key.

CCSS Mathematics, Grade 8

- Expressions & Equations - Analyze and solve linear equations.
- 7. Solve linear equations in one variable.

Students determine advantages and disadvantages of part-time jobs with regard to types of payment, e.g., salary, hourly wage, commission, piecework. They will learn to calculate weekly gross wages of the above types of payments.

Lesson Extension: Conduct an informal survey (interview 10-12 people) on the most common way people get paid. Graph the results.

Home Connection: Ask family members how they get paid and calculate their monthly earnings. Research how much a sports star makes and calculate their monthly earnings.

Student Worksheet 1 (pdf)

Student Worksheet 2 (pdf)

CCSS Mathematics, Grade 8

Expressions & Equations - Understand the connections between proportional relationships, lines, and linear equations.

5. Graph proportional relationships, interpreting the unit rate as the slope of the graph.

Students will learn about the options of the working world. They will consider choices for careers, see how income is connected to education and profession, and be able to create a budget with various expenses. Students will record their data in a graphic organizer and create appropriate constructive responses.