Good Morning!

1. Good Morning! • Please have the following on your desk • Warm-Up • Colored pen • INB • Pencil • White board • Whiteboard marker • Complete warm-up 5-1 • Set up your interactive notebook for today’s lesson • Complete vocabulary hand out

2. 5-1 Introduction to Ratios Now set up the left side of the page & complete: Page number Lesson title Learning goal What I know: Then complete the vocabulary card

3. Foldable for the right side of your INB • Complete the vocabulary handout and cut out. • Glue vocab card below the objective • Staple 3 times at the top edge of the all about ratios foldable to create a flip book • Glue the booklet at the bottom Staple Staple

4. Vocabulary • RATIO • A comparison of 2 numbers or quantities • Example: • 12 to 25 • 12:25 • Characteristics: • Can be written in 3 different ways: • Using the word “to”…12 to 25 • Using a colon...12:25 • As a fraction… • Non examples: • (share what you’ve got!)

5. 1st tab of book

6. 2nd Tab of Book

7. rock hip hop 5 7 = The ratio of rock to hip hop can be written as , 5 to 7, 5:7. 5 7 Additional Example 1A: Writing Ratios Twenty students are asked to choose their favorite music category. Eight chose pop, seven chose hip hop, and five chose rock. Write each ratio in all three forms. rock to hip hop There are 5 who choose rock and 7 who choose hip hop.

8. 5 15 , 5 to 15, 5:15. Additional Example 1C: Writing Ratios Twenty students are asked to choose their favorite music category. Eight chose pop, seven chose hip hop, and five chose rock. Write each ratio in all three forms. rock to pop and hip hop rock t pop & hip hop 5 15 There are 5 who choose rock, 8 who choose pop, and 7 who choose hip hop. = The ratio of rock to pop and hip hop can be written as

9. The ratio of kite surfing to snow boarding can be written as , 4 to 6, 4:6. 4 6 Check It Out! Example 1B Nineteen students are asked to choose their favorite sport. Nine chose rock climbing, four chose kite surfing, and six chose snow boarding. Write each ratio in all three forms. kite surfing to snow boarding There are 4 who choose kite surfing and 6 who choose snow boarding. 4 6 kite surfing snow boarding =

10. 9 10 , 9 to 10, 9:10. Check It Out! Example 1C Nineteen students are asked to choose their favorite sport. Nine chose rock climbing, four chose kite surfing, and six chose snow boarding. Write each ratio in all three forms. rock climbing to kite surfing and snowboarding There are 9 who choose rock climbing, 4 who choose kite surfing, and 6 who choose snow boarding. rock climbing kite surfing and snow boarding 9 10 = The ratio of rock climbing to kite surfing and snow boarding can be written as

11. Remember! A fraction is in simplest form when the GCD of the numerator and denominator is 1.

12. Additional Example 2: Writing Ratios in Simplest Form On average, most people can read about 600 words in 3 minutes. Write the ratio of words to minutes in all three forms. Write your answer in simplest form. words minutes 600 3 Write the ratio as a fraction. = words minutes 600 ÷ 3 3 ÷ 3 = Simplify. words minutes 200 1 For every minute, there are 200 words read. = The ratio of words to minutes is 200 to 1.

13. Check It Out! Example 2 At Casitas Middle School, there are 456 microscopes for 152 students. Write the ratio of microscopes to students in all three forms. Write your answer in simplest form. microscopes students Write the ratio as a fraction. 456 152 = microscopes students 456 ÷ 152 152 ÷ 152 = Simplify. microscopes students 3 1 For every microscope, there are 3 students. = The ratio of microscopes to students is 3 to 1.

14. To compare ratios, write them as fractions with common denominators. Then compare the numerators.

15. 3rd tab of book

16. Additional Example 3: Comparing Ratios Honey-lemon cough drops come in packages of 30 drops per 10-ounce bag. Cherry cough drops come in packages of 24 drops per 6-ounce bag. Tell which package has the greater ratio of drops to ounces. 3 1 drops ounces 30 10 Write the ratios as fractions with common denominators. = = Honey-lemon: drops ounces 24 6 4 1 = Cherry: = Because 4 > 3 and the denominators are the same, the drops to ounces is greater in the bag of cherry cough drops.

17. Check It Out! Example 3 Mixed nuts come in small packages of 25 per 5 ounce package and large packages of 56 per 8 ounce package. Tell which bag has the greater ratio of mixed nuts per ounce. 7 1 mixed nuts ounces 56 8 Write the ratios as fractions with common denominators. = = Large: mixed nuts ounces 25 5 5 1 = Small: = Because 7 > 5 and the denominators are the same, the large package has the greater ratio of mixed nuts to ounces.

18. Rally Coach! TB pg 234 B’s complete: #6 #3 #4 A’s complete: #5 #9 #10

19. Left side time! What I learned: write 1-2 sentences about what you learned. No proof or reflection for this lesson 

20. Ticket out the door 1. There are 220 calories in 5 crackers. Write the ratio of calories to crackers in simplest form. 2.On a school trip, Bus 1 has 3 teachers and 14 students. Bus 2 has 4 teachers and 28 students. Which bus has the greater ratio of teachers to students?