1. Warm-Up AgePopulation Under 5 years539,509 5 to 9 years562,553 10 to 14 years551,367 15 to 19 years539,931 20 to 24 years577,508 25 to 59 years3,985,892 60 to 84 years1,187,092 85 years and over105,461

2. Homework Due Today Homework from Monday.

3. Homework Due Tomorrow Long Distance: You made a 12 minute phone call using a calling card. The call cost $.66. There is $1.21 left on your calling card. The cost per minute of long distance calls is constant. How many more minutes can you talk long distance using your calling card? Write a ratio of the form Cost of phone call for the phone call. Minutes of phone call Let m represent the number of minutes you can talk for $1.21. Write a ratio of the same form as the one in Step Use the two ratios to write a proportion. Solve the proportion.

4. Review for Test 2 Wednesday, February 23, 2011

5. 21 st Century Skills Hair The average adult human head has an area of about 120 square inches and contains about 100,000 hairs. How many hairs per square inch does the average adult human have?

6. Today’s Activity You will be placed in groups by the teacher in order to complete the centers. Center 1- Backpack Color: use the four charts given to graph and analyze their data..

7. Center 2 Center 2-Fruit Loops/Cheerios Activity:use the manipulatives to graph, analyze, and draw a box and whiskers plot.

8. Center 3 Achieve 3000 Station:use the three computers in the room to complete the “Counting Everyone In China” Lesson including the following links: Activity Thought Question Poll Math Puzzle

9. Essential Question How do you determine that two ratios do not form a proportion?