Lesson 2

More Fraction Strips

Est. Class Sessions: 2

Daily Practice and Problems

Teacher Notes
X

TIMS Challenge

This DPP can serve as Problem of the Week.

Strategies will vary. Since all the numbers in the problems except the measurements for the mall are estimates, it is not possible to arrive at exact answers. Students should choose convenient numbers for efficient estimation strategies.

    1. The area is 2,620,515 square feet.
    2. Possible response: About 1,310,000 people;
      2,620,000 ÷ 2 = 1,310,000 people.
  2. Possible response: Each volunteer parked around 20 bikes.
    2000 ÷ 100 = 20 bikes
  3. Possible response: About 1,542,000 passenger trips were taken altogether. 1,120,000 + 420,000 + 2000 = 1,542,000 trips.
  4. No. There should have been about 1000 more port-a-potties to accommodate the crowd of 1,800,000.
  5. About 600,000 more people attended President Obama's inauguration.

Challenge students to use the library or the web to find other interesting facts and figures about presidential inaugurations.

D. Inauguration Day 2012 by the Numbers

The inauguration of President Obama drew the largest inauguration crowd in history. Solve the problems below. Decide whether an estimate or an exact answer is possible or needed. Choose efficient strategies. Use a separate sheet of paper to show or tell how you solved each problem. You may use a calculator to help you.

  1. The largest area of the National Mall where crowds gathered is 4261 feet long and 615 feet wide.
    1. What is the area of this portion of the mall?
    2. If each person in a crowd takes up about 2 square feet of space, how many people were able to gather here?
  2. To help ease traffic, the Washington Area Bicyclist Association volunteered to park bikes for people who rode to the inauguration. The Association parked about 2000 bikes. If each of 90 volunteers parked the same number of bikes, about how many bikes did each volunteer park?
  3. Washington, D.C.,'s public transportation system, the Metro, calculated that on Inauguration Day the following passenger trips were taken: 1,120,000 rail trips; 423,000 bus trips; and 1721 special access trips. About how many passenger trips were taken altogether?
  4. The National Park Service said there were about 1,800,000 people on the entire National Mall. The National Park Service placed 5000 port-a-potties on the mall for Inauguration Day. If one port-a-potty serves 300 people, were 5000 enough? If not, about how many more port-a-potties should there have been?
  5. The inauguration of Lyndon B. Johnson in 1965 drew a crowd of about 1,200,000 to the National Mall. About how many more people went to President Obama's inauguration?