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.
Algebra 1 by Southwest Washington Common Core Mathematics is licensed under a Creative Commons Attribution 4.0 International License. 

2. Regression Equations Unit Launch
Guessing Ages
Regression Equations
Unit Launch
Algebra 1 by Southwest Washington Common Core Mathematics is licensed under a Creative Commons Attribution 4.0 International License. 

3. Launch You are going to guess ages of famous people.
How could you determine who at your table is the best guesser?
Algebra 1 by Southwest Washington Common Core Mathematics is licensed under a Creative Commons Attribution 4.0 International License. 

4. Practice Target Practice 4: Model with mathematics.
2-7 Solving Equations With Algebra Tiles powerpoint
Practice Target
Practice 4: Model with mathematics.
Practice 4: Model with mathematics. 4
Algebra 1 by Southwest Washington Common Core Mathematics is licensed under a Creative Commons Attribution 4.0 International License. 

5. 2-7 Solving Equations With Algebra Tiles powerpoint
Learning Target
Modeling Data Learning Target
S-IDc I can interpret linear models.
Construct a scatter plot on paper and with technology.
Describe the relationship between both variables.
M1.3.G Describe the correlation of data in scatterplots in terms of strong or weak and positive or negative.
We are getting ready to start this target.
Algebra 1 by Southwest Washington Common Core Mathematics is licensed under a Creative Commons Attribution 4.0 International License. 

6. Explore
Algebra 1 by Southwest Washington Common Core Mathematics is licensed under a Creative Commons Attribution 4.0 International License. 

7. Guessing Ages How old is … ? Barack Obama Katy Perry Aubrey Graham
LaMarcus Aldrige
Harry Styles
Algebra 1 by Southwest Washington Common Core Mathematics is licensed under a Creative Commons Attribution 4.0 International License.  7

8. Guessing Ages How old is … ? Teacher’s Choice Meryl Streep
Jennifer Lawrence
Kayne West
Rico Rodriguez
Teacher’s Choice – The easiest is you. If you don’t want students to know your age, do a little research.
Algebra 1 by Southwest Washington Common Core Mathematics is licensed under a Creative Commons Attribution 4.0 International License.  8

9. The Actual Ages Guessing Ages 9
Algebra 1 by Southwest Washington Common Core Mathematics is licensed under a Creative Commons Attribution 4.0 International License.  9

10. Barak Obama 52
Algebra 1 by Southwest Washington Common Core Mathematics is licensed under a Creative Commons Attribution 4.0 International License.  10

11. Katy Perry 29
Algebra 1 by Southwest Washington Common Core Mathematics is licensed under a Creative Commons Attribution 4.0 International License.  11

12. Aubrey Graham 27
Algebra 1 by Southwest Washington Common Core Mathematics is licensed under a Creative Commons Attribution 4.0 International License.  12

13. Lamarcus Aldridge 28
Algebra 1 by Southwest Washington Common Core Mathematics is licensed under a Creative Commons Attribution 4.0 International License.  13

14. Harry Styles 20
Algebra 1 by Southwest Washington Common Core Mathematics is licensed under a Creative Commons Attribution 4.0 International License.  14

15. Teacher’s Choice __
Algebra 1 by Southwest Washington Common Core Mathematics is licensed under a Creative Commons Attribution 4.0 International License.  15

16. Meryl Streep 64
Algebra 1 by Southwest Washington Common Core Mathematics is licensed under a Creative Commons Attribution 4.0 International License.  16

17. Jennifer Lawrence 23
Algebra 1 by Southwest Washington Common Core Mathematics is licensed under a Creative Commons Attribution 4.0 International License.  17

18. Kanye West 36
Algebra 1 by Southwest Washington Common Core Mathematics is licensed under a Creative Commons Attribution 4.0 International License.  18

19. Rico Rodriquez 15
Algebra 1 by Southwest Washington Common Core Mathematics is licensed under a Creative Commons Attribution 4.0 International License.  19

20. Guessing Ages Make a scatter plot of your data.
Draw a line that models your data on your scatter plot.
Explanatory: actual age
– my guess is related to how old I think the person is. Zak Efron is much younger than Morgan Freeman
Response: guessed age
TALES; Title, Axes, Labels, Scales
Algebra 1 by Southwest Washington Common Core Mathematics is licensed under a Creative Commons Attribution 4.0 International License.  20

21. Guessing Ages
Who in your group was the best guesser? Use at least one representation to support your claim.
Explanatory: actual age
– my guess is related to how old I think the person is. Zak Efron is much younger than Morgan Freeman
Response: guessed age
TALES; Title, Axes, Labels, Scales
Algebra 1 by Southwest Washington Common Core Mathematics is licensed under a Creative Commons Attribution 4.0 International License.  21

22. Debrief What do you need to draw a scatter plot line that models data
What do you think a perfect guesser’s scatter plot would look like?
Algebra 1 by Southwest Washington Common Core Mathematics is licensed under a Creative Commons Attribution 4.0 International License.