1. Today’s Lesson: “SLOPES”

2. Slopes are commonly associated with:

3. Slopes are commonly associated with:

4. Slopes are commonly associated with:

5. Slopes are commonly associated with:

6. The slope we are studying is associated with the graph of a line.

7. What is your Definitions of SLOPE?
Allow students time to copy definitions. May need to review that a ratio is a comparison of numbers

8. SLOPE is… • The tilt or inclination of a line
• The ratio of vertical change to horizontal change.
• The change in ‘y’ over the change in ‘x’

9. Vertical Change (rise) Horizontal Change (run)
To determine a slope:
Vertical Change (rise)
Horizontal Change (run)

10. How many points do you need to draw a line?
• One?
• Two?
• Three or more?
Quiz students by a show of hand

11. Practice problem #1
Graph:
(3, 2)
and
(-1,-1)

12. Draw a line
through
the points

13. Remember we are finding the following ratio:
Let’s find the slope of our line:
Remember we are finding the following ratio:
Vertical or Rise
Horizontal Run
Find the slope

14. Vertical Change or the Rise3

15. Horizontal Change or the Run4 3

16. = Vertical Rise Horizontal Run 3 4
May need to remind students that a ratio is a comparison of two numbers
Reminder: A ratio is a comparison of two numbers

17. Now, Let’s have some fun with the “Barbie Bungee Jump” Activity
Now, Let’s have some fun with the “Barbie Bungee Jump” Activity! =) Group yourselves into 3~4 people