Consider a career in which a person could

expect to make a salary of $38,500 per year after only two years on the job.

Is that person earning more or less than a welder who makes $21.00 per hour?

Take 3 – 5 minutes to work out your answer. Compare/Share your solution with a partner. Hone your answer so that you can explain it

clearly to someone else.

Bell Work

See note

Earning a salary vs. working by the

hour

Is one better than the other?

Topic: Annual salary compared to Hourly pay

Do: Calculate an equivalent earning potential

Level: Applying

Objective

See note

Standard: HS.N-Q.1 Use units as

a way to understand problems and to guide the solution of multi-step problems; choose and interpret units consistently in formulas; choose and interpret the scale and the origin in graphs and data displays.

College and Career Ready Math

See note

Let’s look at the problem mathematically:

Using unit rates

See note

Maybe you started with the welder’s pay and

found an equivalent annual salary. Here’s how you might set up the problem:

Same problem…

See note

$95,700 annual salary $46 per hour What hourly rate would be comparable to this

salary? Consider a few things:

“Full time” is usually 40 hours per week. Sick leave and vacation time is already included. Over time is also included.

Who makes this kind of money? What do they do for a living? How much education/training do they need?

Compare

See note

You worked for minimum wage ($7.90 per

hour) all summer. Then you received a 10% ($0.79) raise.

If you work 25 hours every week while you are taking classes at the community college, how much do you earn in 2 years? Additional information: you took an equivalent

of 5 weeks sick leave and vacation time during the two years.

Minimum +

See note

Is there any way a person who works at a rate

of $32.50 per hour could possibly make more than someone who makes a salary of $68,000 per year?

Justify your answer mathematically and realistically.

Hard work pays…

See note

Write your name on a sticky note, and decide where you will place it on the Traffic Signal poster as you go.

Green Light Means that you are “good to go” with the idea of finding equivalent hourly and annual pay rates.

Yellow Light Means that you are proceeding with caution because you are beginning to understand, but are not quite sure you can do this kind of problem by yourself.

Red Light Means that you need to stop right here until you get more instruction and help because you really don’t understand today’s lesson.

Closure

HS.MP.1 Make sense of problems and

persevere in solving them. HS.MP.3 Construct viable arguments and

critique the reasoning of others. HS.MP.4 Model with mathematics.

Standards for Math Practice