Unit Rates October 4, 2012.

Slides:

Advertisements

Similar presentations

Advertisements

5-2 Rates Course 2 Warm Up Vocabulary Lesson Presentation.

Warm Up Warm Up Warm Up Warm Up Video Lesson Presentation Lesson Presentation Lesson Presentation Lesson Presentation.

Holt CA Course Rates AF2.2 Demonstrate an understanding that rate is a measure of one quantity per unit value of another quantity. Also covered:

Constructed Response Assessment October 17th A ratio is a comparison of two quantities using division. Ratios can be written in three different ways:

Warm-up: On page. Write each ratio in simplest form.

Ratios Rates and Unit Rate

Ratios and Unit Rates Lesson 6-1 & 6-2.

Unit Rate Review. Vocabulary Review A ratio is a comparison of two quantities by division. ̶17 out of 20 students, or A rate is a special type of ratio.

4.1 D - Unit Rates Lesson 4-1 D Mrs. Wilson.

Holt CA Course Rates. Holt CA Course Rates.

5-3 Dimensional Analysis Warm Up Problem of the Day

Unit Rate and proportional reasoning

Transparency 2 Click the mouse button or press the Space Bar to display the answers.

4/17/2013 Review of Unit Rate.

Unit Rates Lesson 6.2.

Do Now: 1) Given triangle UAF with coordinates U(O, 4), A(8, -9), and F(-IO, -12), find the image of point A after a reflection in the y- axis. 2) After.

Course Dimensional Analysis Warm Up Find each unit rate. 1. Jump rope 192 times in 6 minutes 2. Four pounds of bananas for $ anchor bolts.

Ratios, Rates, and Unit Rates across the Universe An introduction.

Holt CA Course Rates Warm Up Warm Up California Standards California Standards Lesson Presentation Lesson PresentationPreview.

4-2 Rates Warm Up Warm Up Lesson Presentation Lesson Presentation Problem of the Day Problem of the Day Lesson Quizzes Lesson Quizzes.

5-1 Ratios & Rates Course 2 Warm Up Warm Up Problem of the Day Problem of the Day Lesson Presentation Lesson Presentation.

4-2 Rates Warm Up: November 4 th Divide ÷ ÷ ÷ ÷

Bell Work Write the ratio in simplest form: Write the above simplified ratio two other ways. What is the ratio of boys to girls and girls to boys.

Rates 4-1. Vocabulary Rate- a ratio that compares two quantities measured in different units. Unit rate- a rate whose denominator is 1 when it is written.

Bell Work Write the ratio in simplest form: Write the above ratio two other ways. What is the ratio of boys to girls and girls to boys in this class?

Learn to find units and compare unit rates, such as average speed and unit price. Course Rates.

Ratio Sponge Page 48 Find the following ratios THREE WAYS: 1)Pizza to coke 2) Pizza to total 3) Cupcakes AND coke bottles to pizza 4) Total to cupcakes.

5-2 Rates Course 2 Warm Up Warm Up Problem of the Day Problem of the Day Lesson Presentation Lesson Presentation.

Splash Screen. 1.A 2.B 3.C 4.D Five Minute Check 6 A.10:34 B.17:5 C.5:17 D.34:10 Among the staff at Roosevelt Elementary, 68 teachers prefer coffee and.

ALGEBRA READINESS LESSON 6-2 Warm Up Lesson 6-2 Warm-Up.

ALGEBRA READINESS LESSON 6-2 Warm Up Lesson 6-2 Warm-Up.

Ratios and Unit Rate Reminder By: Mr. Menjivar. Ratios and Unit Rates Reminder R L 03/31/11 Ratios and Unit Rate Reminder Reflection 03/31/11 Observe,

Unit Rates & Prices  A rate is a ratio that compares two quantities measured in different units.  A unit rate is a rate whose denominator is 1. To change.

5-4 Dimensional Analysis Course 2 Warm Up Warm Up Problem of the Day Problem of the Day Lesson Presentation Lesson Presentation.

Student will learn…. to find units and compare unit rates, such as average speed and unit price. Course 2 Rates M7 Workbook Volume 2 Chapter 5 Lesson 1.

Holt CA Course Rates Warm Up Warm Up California Standards Lesson Presentation Preview.

4-2 Unit Rates and Proportional Reasoning. Video Tutor Help Finding a unit rateFinding a unit rate (4-2) Comparing unit ratesComparing unit rates (4-2)

2.1 Unit Rates Essential Question: When and why do I use proportional comparisons?

Unit 1 Test Part 2 First Name and Last Name Period Date Mr. Menjivar/Pre-Algebra StandardScore NS 1.2 NS 2.2.

Holt CA Course Rates AF2.2 Demonstrate an understanding that rate is a measure of one quantity per unit value of another quantity. Also covered:

Holt CA Course Rates Warm Up Warm Up California Standards California Standards Lesson Presentation Lesson PresentationPreview.

5 Minute Check. Flashcards Tuesday, Sept 1 Lesson 1.3 Rates.

Unit Rates Lesson 6-2.

Bell Work Write the ratio in simplest form: 18 24

5-4 Dimensional Analysis Warm Up Problem of the Day

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

5-2 Rates Course 2 Warm Up Problem of the Day Lesson Presentation.

Unit Rate Review Unit Rate Notes Page 39.

Unit Rates Lesson 6-2.

2.02 Unit Rate Review.

Unit Rates Lesson 6-2.

Do Now Divide ÷ ÷ ÷ ÷

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Ratio Sponge Page 43 Find the following ratios THREE WAYS:

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Course Rates Learn to find units and compare unit rates, such as average speed and unit price.

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Ratio Warm-Up Page 41 Find the following ratios THREE WAYS:

5th Period Warm Up During Christmas, a book store sold 72 books. If the ratio of books to bookmarks sold was 9:2, how many bookmarks did the store sell?

Which is the better buy?.

Warm Up: Divide using a calculator ÷ ÷ ÷ ÷

Inquiry Lab Work with your groups for this assignment NO questions to teacher (we will take notes on this topic) Page 195-Read Example Page Complete.

6-1: Ratios and Rates.

Lesson Quizzes Standard Lesson Quiz

Presentation transcript:

Unit Rates October 4, 2012

Warm Up 10/4 Page 4 Write 2 equivalent ratios for each of the following ratios: 5 to 4 6:2 ½ 18 to 43 9: 2

Vocabulary A rate is a ratio that compares two quantities measured in different units.

Vocabulary The unit rate is the rate for one unit of a given quantity. Unit rates have a denominator of 1

Finding unit rate. Find the rate. A dog walks 696 steps in 12 minutes. How many steps does the dog take in 1 minute? 696 steps 12 minutes Write a rate that compares steps and minutes. 696 steps ÷ 12 12 minutes ÷ 12 Divide the numerator and denominator by 12. 58 steps 1 minute Simplify. The dog walks 58 steps per minute.

There were 15 cake orders at a bakery in 3 days There were 15 cake orders at a bakery in 3 days. How many orders would that be in one day?

There were 150 sheets of paper in 5 notebooks There were 150 sheets of paper in 5 notebooks. How many sheets of paper are in one notebook?

What is the unit rate? driving 120 miles in 3 hours

What is the unit rate? 54 hot dogs for 18 people

What is the unit rate? 160 words typed in 4 minutes

What is the unit rate? $284 for a 4 day car rental

Which is the better deal? $4.25 for 2 gallons of milk or $2.55 for 1 gallon of milk

Which is the better deal? inline skate rentals at: $30.00 for 4 hours or $54.00 for 7 hours

Which is the better deal? $380 for a bus for 32 people or $420 for a bus for 38 people

Finding Unit Rates Find the rate. A Ferris wheel revolves 35 times in 105 minutes. How many minutes does 1 revolution take? 105 minutes 35 revolutions Write a rate that compares minutes and revolutions. 105 minutes ÷ 35 35 revolutions ÷ 35 Divide the numerator and denominator by 35. 3 minutes 1 revolution Simplify. The Ferris wheel revolves 1 time in 3 minutes.

Finding Unit Rates Find the rate. Naja walks 6 yards and passes 24 security lights set along the sidewalk. How many security lights does she pass in 1 yard? 24 lights 6 yards Write a rate that compares security lights and yards. 24 lights ÷ 6 6 yards ÷ 6 Divide the numerator and denominator by 6. 4 lights 1 yard Simplify. Naja passes 4 security lights in 1 yard.

Examples Rate: 150 heartbeats 2 minutes How can we get the denominator to be 1? This is how we find a unit rate.

Find the Unit Rate Amy can read 88 pages in 4 hours. What is the unit rate? (How many pages can she read per hour?)

A unit price is the price of one unit of an item A unit price is the price of one unit of an item. The unit used depends on how the item is sold. The table shows some examples. Type of Item Example of Units Liquid Ounces, quarts, gallons, liters Solid Ounces, pounds, grams, kilograms Any item Bottle, container, carton

Additional Example A 12-ounce sports drink costs $0.99, and a 16-ounce sports drink costs $1.19. Which size is the best buy? Size Price 12 ounces $0.99 16 ounces $1.19 Divide the price by the number of ounces (oz) to find the unit price of each size. $0.99 12 oz $0.08 oz $1.19 16 oz $0.07 oz ≈ ≈ Since $0.07 < $0.08, the 16 oz sports drink is the best buy.

Check It Out: A 1.5 gallon container of milk costs $4.02, and a 3.5 gallon container of milk costs $8.75. Which size is the best buy? Size Price 1.5 gal $4.02 3.5 gal $8.75 Divide the price by the number of grams (g) to find the unit price of each size. $4.02 1.5 gal $2.68 gal $8.75 3.5 gal $2.50 g = = Since $2.50 < $2.68, the 3.5 gallon container is the best buy.

Example Joe’s car goes 25 miles per gallon of gasoline. How far can it go on 8 gallons of gasoline? 25 miles = Unit Rate 1 gallon 8 gallons

Example Juice is sold in two different sizes. A 48-fluid ounce bottle costs $2.07. A 32-fluid ounce bottle costs $1.64. Which is the better buy?

Insert Lesson Title Here Ticket out the door 1. Ian earned $96 babysitting for 12 hours. How much did he earn each hour? 2. It takes Mia 49 minutes to complete 14 homework problems. On average, how long did it take to solve each problem? 3. Seth’s family plans to drive 220 miles to their vacation spot. They would like to complete the drive in 4 hours. What should their average speed be in miles per hour?