# Sales Tax in 50 States - DOC by ytt89186

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```									                  Go Figure! Using Percents in the Real World!

Designed by: David K. Blackwell                 School: Gibbes Middle School

___X    Lesson          ______ Unit

Core Curriculum Objective(s):

The students will apply the concepts of percent to solve real world problems
involving unit price, best buy, commission, interest, sales tax, discount, and
percent of error/increase/decrease. 6NA6 - 3

*This bold-faced portion of the objective will apply to this lesson.

Solve multi-step application problems involving fractions and decimals in a
variety of real world context, including unit price, and present data and
conclusions in paragraphs, tables or graphs. 6NA6 - 4

Overview: The students will complete activities that involve multi-step problems
to solve real world problems that require the students to apply the concepts of
percent to compute unit prices, best buys, commissions, interest, sales tax, and
discounts.

Focus/Essential Questions:

    When you go shopping what is always added to the price at the cash
register?

    What operation would you use to compute sales tax on the cost of an item?
    What is the sales tax for South Carolina?
    Do we have the same sales tax for all fifty (50) of the United States? Why or
why not? If not, then what would be some possible explanations for this?
Time Frame: One to two 50-minute class periods

Resources/Materials:
Textbook, Mathematics: Applications and Connections , Course 1 by Glencoe
http://www.webmath.com/sale.html (This site will show you how to calculate the
sale price of an item, given that you know the original price and how many
"percents off" is involved with the sale price.)
http://www.webmath.com/tip.html (This site will show you how to calculate a tip
that you would leave at your table after a meal in a restaurant.)
http://www.webmath.com/wppercents.html (This site will show you how to solve
word problems involving percents. To use it, find the word problem below that
resembles the one you need help with, fill in the blanks; then, click "Solve" to find
http://www.figurethis.org/challenges/c17/challenge.htm (This is an interactive
site that gives the student a hint to help them solve a critical thinking problem
http://www.inew.com/ (This site has interactive and worksheet production
http://www.eduplace.com/math/mathsteps/6/c/index.html
Understanding Percents
http://www.eduplace.com/math/mathsteps/6/e/index.html
Understanding Rates

Culminating Assessment:

This rubric will be used to access the achievement of students when they
complete activities from this lesson. These activities will involve multi -step
problems to solve real world problems that require the students to apply the
concepts of percent to compute unit prices, best buys, commissions, interest,
sales tax, and discounts. Students will receive ratings in the areas indicated by
the rubric; these ratings will show which students met the objectives(s) and which
students need additional practice with using percents.

Using Percents in the Real World Rubric
Descriptor            Met             Partially Met        Did Not Meet
Requirement        Requirement          Requirement
The student                  20                  10                   0
participated in all
activities.

All computations were          20                 10                    0
correct.

Work is neat and               20                 10                    0
legible.

Student worked                 20                 10                    0
cooperatively with
other students.

Work was turned in on          20                 10                    0
time.

Total points earned
Instructional Activities:

1.    The teacher should lead the students through the focus/essential
questions.

2.    Next, the teacher should complete some sample sales tax problems on
the overhead. See Appendix A. The teacher should monitor the students'
responses to make sure that students are n the right track.

3.    The teacher will divide the students into pair a nd give them copies of
Appendix B.

4.    The students' task is to figure out how much the Smith family spent on
their vacation traveling by car from Columbia, SC to a destination of the
students' choice. The trip must include at least five different states. The
items purchased are included. The students should simply use the tax
tables available at http://www.taxadmin.org/fta/rate/sales.html to decide
how much tax is required for the item. The tax should be added to the cost
to arrive at a total cost. The students must decide on the states that
their trip will take them.

5.    They won't be spending money for lodging because they will be staying
with family and friends along the way.

6.    Once all pairs have finished the work, then the teacher should lead the
students through the answers. Students could volunteer to do the work on
the overhead or the teacher could chose one student from each pair. The
teacher should monitor all parts of the answers providing feedback where
needed.
Appendix A - Sample Sales Tax Problems

1.   Mary bought a sweater for \$25.00. If the sales tax is 7%, what
is the sales tax amount? What is the total price when the sales
tax is added to the cost of the sweater?

2.   Sammy bought a bike with his birthday money. If the bike's
price was \$252.50 and if he paid 6% sales tax, how much did
he pay in all for the bike?

3.   Anthony bought a new coat for school. The price was \$129.00.
The sales tax was 5%. How much were the tax and the total
cost of the coat?

4.   Teresa bought a McDonald's combo for \$3.49. If the tax is 5%
how much will she pay for the combo?

5.   Susan bought a new CD at Target for \$14.99. If she paid 5%
tax, how much would the CD cost her?
Appendix A - Sample Sales Tax Problems KEY

1. Mary bought a sweater for \$25.00. If the sales tax is 7%, what is
the sales tax amount? What is the total price when the sales tax is
added to the cost of the sweater?

 Mary has to multiply \$25.00 by .07 tax.
 \$25.00 x .07 = \$1.47 in sales tax
 \$25.00 + 1.47 = \$26.47 for the sweater

2. Sammy bought a bike with his birthday money. If the bike's price
was \$252.50 and if he paid 6% sales tax, how much did he pay in
all for the bike?

 Again, you have to multiply the money, \$252.50
by .06 tax.
 \$252.50 x .06 = \$15.15 in sales tax
 \$252.50 + 15.15 = \$267.65 for the bike

3. Anthony bought a new coat for school. The price was \$129.00.
The sales tax was 5%. How much were the tax and the total cost
of the coat?

 Multiply \$129.00 by .05 tax.
 \$129 x .05 = \$6.45 in sales tax
 \$129.00 + 6.45 = \$135.45 for the coat

4. Teresa bought a McDonald's combo for \$3.49. If the tax is 5% how
much will she pay for the combo?

 Again, multiply \$3.49 by .05 tax.
 \$3.49 x .05 = \$0.17 in sales tax
 \$3.49 + 0.17 = \$3.66 for the McDonald's combo

5. Susan bought a new CD at Target for \$14.99. If she paid 5% tax,
how much would the CD cost her?

 Multiply \$14.99 by .05 tax
 \$14.99 x .05 = \$0.75 in sales tax
 \$14.99 + 0.75 = \$15.74 for the CD
Appendix B The Smith Family Vacation

Number   Purchase, State where        Subtotal        Tax        Total
it was purchased, and                              (Add the tax to
sales tax percentage                              the subtotal to

1      Lunch at IHOP               \$24.28 x 05. =
State: South Carolina
Percent Sales Tax: 5%

2      Gas and sodas at a           \$37.00 x ___
Pantry in
State: _______________
Percent Sales Tax: ____

3      Trapp's    Family   Fruit    \$15.00 x ___
for Aunt Mary
State:_______________
Percent Sales Tax: ____

4      Gas and sodas at Amoco      \$30.00 x ____
State:_______________
Percent Sales Tax: ____

5      Lunch at Country Kitchen    \$21.50 x ____
State:_______________
Percent Sales Tax: ____

6      Gas/Sodas                   \$25.00 x ____
State:_______________
Percent Sales Tax: ____

7      Joe's Souvenir Shop and     \$48.95 x ____
Fruit Stand
State:_______________
Percent Sales Tax: ____
8    Gas/sodas     at   Dan's      \$20.00 x ___
Service Center
State: _______________
Percent Sales Tax: ____

9    Drinks to go with lunch       \$19.00 x ___
packed by Aunt Em and
gas for the car
State:_______________
Percent Sales Tax: ____

The Smiths are returning home to Columbia!

Gas and drinks               \$22.00 x ____
10   State:_______________
Percent Sales Tax: ____

11   Gene's    Water    World     \$57.00 x ____
Rides
State:_______________
Percent Sales Tax: ____

12   Souvenir's at Gene's        \$100.00 x ____
Water World
State:_______________
Percent Sales Tax: ____

13   Shell Station for Gas and    \$25.00 x ____
Drinks
State:_______________
Percent Sales Tax: ____

14   Lunch at Joe's Crab           \$43.00 x ___
Shack
State:_______________
Percent Sales Tax: ____
15   Shell station 2 for gas    \$35.00 x ____
And sodas
State: _______________
Percent Sales Tax: ____

16   Dinner at Marketplace      \$47.00 x ____
Restaurant
State:_______________
Percent Sales Tax: ____

17   Gas/ Drinks                \$28.00 x ____
State: _______________
Percent Sales Tax:_____

18   Lunch at Red Lobster       \$35.00 x ____
State: _______________
Percent Sales Tax:_____

19   Gas/ drinks…Last Stop      \$27.00 x ____
before the Smith's gets
back home!

Total Prices ( Add all money totals.)
This is the cost of the Smith Family Vacation.

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