1. Ski bird Task

2. What is slope?
Is there a different types of slope?

3. Positive Slope
Lines that have positive slope, slant "up hill"

4. Negative Slope
Lines that have negative slope, slant “down hill"

5. Zero Slope
Lines that are horizontal have a zero slope

6. No Slope or Undefined Slope
Vertical lines have no slope, or undefined slope.

7. Classify the slope of each of these lines as positive, negative, zero slope, or no slope…
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8. Finding The Slope of a Line

9. Vertical Change (UP) Horizontal Change (OVER)
Rise
Run
Vertical Change (UP) Horizontal Change (OVER)
Yes, it is usually a fraction.
Yes, you simplify.
Yes, it can be improper.

10. Instructions:
Draw each diagram.
Measure the rise and run.
Label your diagram.
Find each slope.

11. Roller Coaster
Rise
Run
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Measure the rise and the run of each part of the roller coaster in inches.
Find the slope of each part.

12. Skateboarding “Pyramid” (Side View)
Measure the rise and the run of each part of the pyramid in inches.
Find the slope of each part.
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13. Mount Neverest (Not drawn to scale)
Measure the rise and the run of each part of the mountain in centimeters.
Find the slope of each part.
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14. How many points do you need to draw a line?
One
Two
Three
Quiz students

15. Graph (3,2) and (-1,-1)
Remember to click to make each part appear

16. Draw a line through the points
Remember to click to make each part appear

17. Now that we have our line let’s find its slope…
Remember we are finding the following ratio:
Vertical Change or Rise
Horizontal Change Run

18. Vertical Change or the Rise3
Discuss vertical change

19. Horizontal Change or the Run4 3
Discuss horizontal change

20. Vertical Rise Horizontal Run3 4
May need to remind students that a ratio is a comparison of two numbers

21. Day 2

22. Find the slope of the following line.

23. The slope is… 1 2

24. Find the slope of the line.

25. The slope is…. -3
Discuss why the slope is negative and that –3/1 reduces to –3.

26. Find the slope of these lines.
Have students practice.

27. The slope is…
Black line 3
Red Line 1
Blue Line -1/2

28. Find the slope of these lines

29. The slope is…
Orange line 0
Green Line No Slope (or Undefined)

30. Find the slope of each of these lines…
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