1. CCSS: 6.RP.1 Understand the concept of a ratio and use ratio language to describe a ratio relationship between two quantities.

2. DO NOW: Current understanding What is a ratio? Why do we use ratios? What are some examples of real-world ratios? What do those ratios mean?

3. VOCABULARY  RATIO: expresses the relationship between two quantities. Ratios compare two measures of the same types of things

4. Common Ratios Days per week miles per hour pay in dollars per hour weeks vacation per year hours per day days per year heart beats per minute feet per yard inches per foot

5. Who Uses Ratios… Principals use ratios to make sure there are enough teachers for students in the building. The lottery uses ratios to show how many winners there are compared to tickets bought

6. Ratios in our classroom What is the ratio of boys to girls in our class? What is the ratio of girls to boys in our class? What is the ratio of teacher to students in our class?

7. Your turn: Come up with 3 more ratios you see from our class and explain what they mean

8. Ratio Relationships Part to Part: student to student Part to Whole: student to class Whole to part: class to student

9. Ratio Relationships A basket of fruit contains 6 apples, 4 bananas, and 3 oranges. What is their relationship 1) Bananas to Apples 2) Bananas and Apples to Oranges 3) Oranges to Total Pieces of Fruit

10. Ratio Relationships Find the ratio Model the ratio Write the ratio What does it mean Model it another way 3 drums for 18 people 4 blue eyed people to 6 brown eyed people 5 boys out of 10 girls For every 6 guppies in the tank there are 3 that are orange

11. Video http://www.learnalberta.ca/content/mesg/html/math6web/index.html?page =lessons&lesson=m6lessonshell03.swf

12. Back to the chart 1.Can anything be removed? 2.Can anything be added? 3.Can anything be revised?

13. In closing Research shows that 1 out of 10 people are left-handed. Explain in words what this means and what does this tell us about the people who are right-handed.