1. Percent Intro… A11 Demonstrate Number Sense for Percent

2. What does Percent mean? Percent means “out of 100” So if we know a fraction, or a decimal, we can easily write the percent… 60% X 20

3. What is the percent of the shaded region? 70% X 10

4. What is the percent of the shaded region? 70% X 5

5. Try These! Find the percent for each shape given on your worksheet… You have 5 minutes!

6. 50%25%37.5%

7. What percent is shaded? 50%

8. What percent is shaded? 75%

9. Estimating Percents When the individual sections are not marked, we can estimate the fraction and the percent

10. Estimate the percent of the shaded region

11. It is less than 50% but more than 25%. Looks like more than one third… I could draw lines in to get a fraction…

12. Estimate the percent of the shaded region It is more than 50% but less than 75%. Looks like a little more than one third is not shaded… so about 66% shaded? I could draw lines in to get a fraction…

13. Try These! Time to practice! Complete the worksheet titled, “Introducing Percent”

14. Introducing Percent Worksheet 63%42%18% 45%82%35%

15. Introducing Percent Worksheet 25% 50% 60%50%25%75% 20%33%

16. Introducing Percent Worksheet

18. 10%20% 70%75%90% 66% 33%

19. Introducing Percent Worksheet 50%25%75% 10% 20%60%80% 90%

20. Try These! More practice! Try this worksheet… Finish for homework!

21. Try These!

24. 0.25 25% 0.550%

25. Try These! 0.660% 0.75 75% 0.770%

26. Finding Mistakes Now that we can determine or estimate the percent or from a picture, We can find mistakes when pictures are labelled incorrectly…

27. What’s wrong with this picture? One whole is the same as 100% 55% 35% 20% All sectors should have a sum of 100%... 55% + 35% + 20% ≠ 100

28. What’s wrong with this picture? How would you label these pieces correctly?

29. What’s wrong with these pictures? Do all sectors total 100%

30. Try These! Time to practice! Turn to Check Your Understanding Starting on Page 115 Do #’s 1, 2, 4, 5, 7, and 8

31. Check Your Understanding #1 50%75%10%100%

32. Check Your Understanding #1

33. 40% 64%

36. Check Your Understanding

37. a)Reverse labels b)20% pieces should be the same size! c)55% looks like 50% 25% and 30% look equal add up to a total of 110%! d)Total should be 100% (looks like degrees!)

38. Quiz Time!