Unit 3 – Week 1

Cost Per Unit

Do Now – 5 x 2, 23 Please pick up your guided notes and respond

to the following SILENTLY & INDEPENDENTLY:1. What did you do to prepare for your test. BE

SPECIFIC.2. How much time did you spend preparing for

your test?3. What could you have done better to prepare

for you test? BE SPECIFIC.4. How do you think you did on your test?

85% or High Mathletes 3rd Period

Carlos 5th Period

Lekendric Katelyn Solomon Aliciah Reggie Abdul Kaylan Junior Jalen Belen Vicki Wesley

6th Period Jaycee Antonio Ellie

7th Period Grace Tinaya

Agenda Do Now – 8 minutes Tracking/Shout Outs – 6 minutes Student of the Week – 1 minute Cost Per Unit Investigation – 5 minutes Cost Per Unit INM – 5 minutes Group Work – 15 IP – 5 minutes Exit Ticket – 5 minutes

Today’s Objective

SWBAT determine the cost per unit from a word problem.

Group Work Investigation You are in groups of 4.

Together, you will work together to try to solve the problem given to you.

You may use your partners, and your calculators.

Together, you CAN solve the problem – Use your brains and common sense!

I will be cycling around to monitor your progress and check your final answers.

Cost Per Unit Example 1: Mackenzie and her mom go to

the store and buy a 24 ounce box of cereal. It costs them $5.28. What is the unit price of the cereal?

Cost Per Unit Example 2: Mr. Garrett buys a 40 ounce box

of crackers for the concession stand and it costs $5.20. What is the unit price per ounce of the crackers?

Cost Per Unit Example 3: Cordarius brings a package of

Gatorade in for the football team. He brings in a case with 24 Gatorades. The case cost Cardarius’ mom $20.88. What is the unit price of the Gatorade?

Cost Per Unit Example 4: Mr. Lowe purchases the soccer

team 36 pairs of socks. The total, before tax, was $260.28.What is the unit price of the socks?

Cost Per Unit Example 5: Dr. Brown purchases a case of

pens for every teacher. If one case has 100 pens and costs $25.00 what is the unit price of the pens? At this unit price, how much would 150 pens cost?

Cost Per Unit Example 6: The volleyball team buys a box of

snacks for them to eat before the game. They buy a large box of 48 bags of chips for $9.72. What is the cost per bag of chips? At this price, how much would 100 bags of chips cost?

Cost Per Unit Example 7: Ms. Misconish buys pizza for her

class to celebrate homecoming week. She buys 15 pizzas with a total of 120 slices for a total of $135.00. What is the cost per piece of pizza? At this unit price, how much would 160 slices cost?

Cost Per Unit Example 8: Ms. Misconish bought a box of

Student of the Week pencils. There were 180 pencils in the box and it cost her $35.50. What was the cost per pencil? At this unit price, how much would 250 pencils cost?

Finding the Best Buy Example 9: The girls track team is buying

soda for all the runners. They're on a budget and want to spend as little money as possible. Which size has the best price per fluid ounce? Size Cost

6 $2.6412 $5.7618 $10.2424 $19.20

Finding the Best Buy Example 10: The 8th graders are going on

their class trip to Chicago and are wondering how long they should go. The table lists the price for days at the hotel. How long should the grade go if they want to spend the least amount of money?

Days Cost4 $7308 $1,42012 $1,90019 $3,055

Finding the Best Buy Example 11: Ceirsten compared the price of

cookies at four different stores. Which store sells the cookies at the lowest price per cookie? Store A sells 200 cookies for $14.00. Store B sells 230 cookies for $20.70. Store C sells 270 cookies for $27.00. Store D sells 280 cookies for $22.40.

Finding the Best Buy Example 12:Ms. Jeems is buying detergent so

the sports uniforms can be washed. The table shows the prices for the following varieties. Which size has the cheapest price per ounce?

Size Cost5 lb $6.5010 lb $12.7525 lb $31.2550 lb $60.50

Finding the Best Buy Example 13: Ms. Middleton is buying the

cheerleaders new uniforms. Which store has the best buy for the uniforms? Store A sells 15 uniforms for $389.85 Store B sells 10 uniforms for a total $300.00 Store C sells uniforms $32.00 per uniform. Store D sells 2 uniforms for a total of $58.00

Finding the Best Buy Example 14: Kroger has the following sales

going on for bottles of water. What brand is the best buy? 24 pack of Dasani for $4.08 30 pack of SmartWater for $6.30 24 pack of Aquafina for $3.840 12 pack of Target Brand for $3.00

Finding the Best Buy Example 15: Carlos and his family are

grocery shopping. They are deciding the best place to purchase fruit, They check prices at four different stores. Which store offers the best price per pound for apples? Kroger: 5 lbs of apples for $13.80. Target: 7 lbs of apples for $18.13. Walmart: 3 lbs of apples for $9.15. Piggly Wiggly: 10 lbs of apples for $26.50.

Finding the Best Buy Example 16:Coach Smith is purchasing

basketballs for the new season. Which store has the best price per ball? Dick’s Sporting Goods: 20 balls for $399. Sports Authority: 15 balls for $322.50. Wal-Mart: 8 balls for $156. Play It Again Sports: 3 balls for $66.75.

Exit Ticket

Each of you will complete your exit ticket on a note card.

You will complete the exit ticket in 5 minutes and it must be turned in before you can exit the classroom.

You must work SILENTLY and INDEPENDENTLY.

HOMEWORK – Worksheet

Exit Ticket1. A 6-ounce package of chips costs $0.96. At the same unit

price, how does it cost for a 20-ounce package of crackers? 2. Use the table to answer questions 7 and 8.

Vacation Packagesa) Which number of days gives the best unit price?b) Which number of days gives the same unit price? 

3. Alfonso compared the price of t-shirts at four different stores. Which stores sells the t-shirts at the lowest price per t-shirt?

Store W sells 5 t-shirts for $10.75. Store X sells 7 t-shirts for $15.75. Store Y sells 10 t-shirts for $20.50. Store Z sells 12 t-shirts for $26.40.

Do Now -- √100, 32 Please respond to the following on your

guided notes SILENTLY & INDEPENDENTLY:1. Antonio is looking to buy music online. Which

company has the best price per song?1. Music N More: 25 sonfs for $18.252. Jammin’ Tunes: 15 songs for $11.253. Tunes-R-Us: 30 songs for $20.704. Discount Songs: 10 songs for $7.30.

2. Which product is the least expensive per ounce?Cereal 14 ounces $4.20

Oatmeal 12 ounces $3.84Rice 8 ounces $2.64Honey 16 ounces $5.60

Today’s Agenda Do Now – 8 minutes Group Work Investigation – 10 minutes INM – 5 minutes Group Work GP – 12 minutes IP – 10 minutes Exit Ticket – 5 minutes

Today’s ObjectiveSWBAT determine how much money will be saved by purchasing the product with the best buy.

Part Work Investigation After learning, what we did yesterday, we will

take it a step forward. With your partner, you will all begin working

on problem 1. You will have 5 minutes to solve problem 1. Afterward, we will go over it. You may use your notes, your calculators, and

each other! You are using your inside voices! TRY YOUR HARDEST – YOU CAN FIGURE IT

OUT!

Best Buy Example 1: Ms. Misconish wants to buy

markers for the class. She has two different options: Option A: 10 markers for $1.25 Option B: 50 markers for $4.75.

If Ms. Misconish needs 125 markers for her students, which package should she buy and how much money will she save by purchasing one option over the other?

Best Buy Example 2: Ms. Shipp is ordering books for

the school. She has two different packages she can order. Package 1: 20 books for $185 Package 2: 50 books for $65

If Ms. Shipp is buying 160 books, which package is best and how much money will she save buying one package over the other?

Best Buy Example 3: Coach Tang is buying soccer balls

for the girls soccer team. He has two different packages she can order. Package 1: 30 soccer balls for $25. Package 2: 12books for $12.

If Coach Tang is buying 60 soccer balls, which package is best and how much money will he save buying one package over the other?

Best Buy Example 4: Ms. Misconish is buying snacks

for her class who met the big goal on the last unit assessment. She has two options. Sam’s Club: 50 bags of chips for $30. Cost-Co: 25 bags for $27.

If Ms. Misconish needs 200 bags of chips. Where should she buy the chips and how much money will he save buying at one store over the other?

Best Buy Example 5: Ms. Pitts is buying test tubes for

her science lab. She has two different options to purchase the test tubes. Mail-Order Store: 15 test tubes for $9.00. Internet Order Store: 35 test tubes for $20.00.

Ms. Pitts needs 133 test tubes. Where should she buy the test tubes and how much money will he save buying from one vendor over the other vendor?

Best Buy Example 6: The administration is buying

agenda books for all the students at Kate Bond. There are two different packages they can buy the agenda books. Package 1: 100 books for $85.00. Package 2: 25 books for $22.00.

The school need 1,225 agenda books. Where should they buy the agenda books to get the cheapest price and how much money will they save buying one package over the other?

Best Buy Example 7: Wal-Mart offers different

packages of Oreos. Package 1: 3 sleeves of Oreos for $3.25. Package 2: 5 sleeves of Oreos for $4.75.

The concession stand needs 34 sleeves for the games this week. Which package should they buy and how much money will they save buying one package over the over package?

Best Buy Example 8: Ms. Misconish needs to replace

all her Expo markers for whiteboard practice this week. There are two different package options at Wal-Mart. Package 1: 5 markers for $3.20. Package 2: 12 markers for $7.75.

Ms. Misconish needs 36 markers. What package should she buy if she wants to spend the least amount of money and how much money will she saving buying one package over another?

Best Buy Example 9: KBM is buying balloons for the

homecoming pep rally. Target has two options. Option A: 10 balloons for $1.35. Option B: 25 balloons for $1.85

The school needs 220 balloons. Which package should they buy and how much money will they save buying one package over the other?

Best Buy Example 10: Mr. Lowe is buying books for his

class. He can buy them in the following packages. Package 1: 2 books for $5.00. Package 2: 4 books for $ 8.00.

Mr. Lowe needs to purchase 45 books. Which package should he buy and how much money will he save buying the cheaper option?

Exit Ticket

Each of you will complete your exit ticket on a note card.

You will complete the exit ticket in 5 minutes and it must be turned in before you can exit the classroom.

You must work SILENTLY and INDEPENDENTLY.

HOMEWORK – Worksheet

Exit Ticket1. Ms. Misconish went to the store to buy

calculators. The following packages of calculators are available at the store:

3 calculators for $24.45 4 calculators for $31.00

Ms. Misconish needs to buy 36 calculators. How much money will she save by purchasing 36 calculators in packages with the lowest unit price compared to the highest unit price?

2. Use the table for questions a and b. Which size has the best price per

fluid ounce? Which size has the most expensive price

per fluid ounce?