2. 11/22/2010 ©Evergreen Public Schools 2010 1 Guessing Ages Teacher Notes Have fun today! Slide 13 asks you to give students your age. Purpose Recall how to graph a scatter plot Identify independent and dependent variables of a data set. Learn how to identify, understand, and apply an understanding the correlation in a scatter plot: positive vs. negative and strong vs. weak.

3. Guessing Ages Regression Equations Unit Launch ©Evergreen Public Schools 2010 2

4. 3 LaunchLaunch You are going to guess ages of famous people. How could you determine who at your table is the best guesser?

5. ©Evergreen Public Schools 20104 Practice Target Practice 4: Model with mathematics. Practice 6. Attend to precision.

6. ©Evergreen Public Schools 2010 5 Learning Target Modeling Data Learning Target S-IDc I can interpret linear models. –Construct a scatterplot on paper and with technology. –Describe the relationship between both variables. We are getting ready to start this target.

7. ©Evergreen Public Schools 2010 6 ExploreExplore

8. 7 Guessing Ages Barack Obama Katy Perry Aubrey Graham LaMarcus Aldrige Harry Styles How old is … ?

9. ©Evergreen Public Schools 2010 8 Guessing Ages Teacher’s Choice Meryl Streep Jennifer Lawrence Kayne West Rico Rodriguez How old is … ?

10. ©Evergreen Public Schools 2010 9 Guessing Ages The Actual Ages

11. ©Evergreen Public Schools 2014 10 Barak Obama 52

12. ©Evergreen Public Schools 2010 11 Katy Perry 29

13. ©Evergreen Public Schools 2010 12 Aubrey Graham 27

14. ©Evergreen Public Schools 2010 13 Lamarcus Aldridge 28

15. ©Evergreen Public Schools 2010 14 Harry Styles 19

16. ©Evergreen Public Schools 2010 15 Teacher’s Choice __

17. ©Evergreen Public Schools 2010 16 Meryl Streep 64

18. ©Evergreen Public Schools 2010 17 Jennifer Lawrence 23

19. ©Evergreen Public Schools 2010 18 Kanye West 36

20. ©Evergreen Public Schools 2010 19 Rico Rodriquez 15

21. Guessing Ages Make a scatterplot of your data. Draw a line that models you data on your scatterplot. ©Evergreen Public Schools 2010 20

22. ©Evergreen Public Schools 2010 21 Who in your group was the best guesser? Use at least one representation to support your claim. Guessing Ages

23. ©Evergreen Public Schools 2010 22 Debrief What do you think a perfect guesser’s scatter plot would look like? What do you need to draw a scatterplot line that models data