Front end errors cause more damage than back end or

Info icon This preview shows pages 25–29. Sign up to view the full content.

View Full Document Right Arrow Icon
it is a $10,000 mistake; if the 5 is supposed to be a 4, it is merely a $10 error. Front-end errors cause more damage than back-end or middle errors. 2. Work a few examples that do not require borrowing—for example, 5,370 – 2,154. Step 1: Subtract the front numbers (those farthest to the left). 5,370 –2,154 3 Step 2: Improve your es- timate by subtracting the next column of num- bers. 5,370 –2,154 3 2 Step 3: Fill in the remain- ing places with zeros. 3. Work some examples that require borrowing, for example, 5,137 – 2,943. If you look ahead and notice that borrowing will be required, just subtract the front columns, ignoring the columns to the right and record zeros as before in the unsubtracted columns. 5,137 –2,943 2,200 ¨ Subtract 29 from 51 to get 22. Put the 22 under the 29. Put zeros in the empty spaces. ¨ Estimated answer 4. Distribute the worksheets. 5. Circulate and help students as necessary. Extend and Vary the Lesson • Go to and have students write four word problems based on their research of women’s sports. Discuss when it is appropriate to estimate subtraction answers. • Research the lives of well-known women in sports. What personal traits made these athletes successful? Investigate the accuracy of your estimates finding the actual answers to the work- sheet problems. Compare the results to your estimates. Use addition and multiplication to estimate measures on the basketball court. See lesson 7, “Figuring the Metric Dimensions for a Model Court,” for exact measure- ments (on page 195). Estimate the perimeter and area of the court and other marked regions painted on the court. Use = 3 to quickly estimate the circumferences and areas of circles and semicircles. 5,370 –2,154 3,200 estimated answer
Image of page 25

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
From NCAA Basketball Fast Break: Lessons Across the Curriculum With the NCAA, © 2003, NCAA. 192 Third Grade–Fifth Grade Math References Rutledge, R. 1998. The Best of the Best in Basketball. Brookfield, CT: Millbrook Press. Stewart, M. 1988. Basketball: A History of Hoops. New York: Franklin Watts. Yost, H., ed. 2001. 2002 Women’s NCAA Basketball Records. Indianapolis: National Col- legiate Athletic Association.
Image of page 26
From NCAA Basketball Fast Break: Lessons Across the Curriculum With the NCAA, © 2003, NCAA. 193 Year by Year: Estimation in Subtraction Name_____________________________________________ Date______________________ On June 23, 1972, President Richard Nixon signed Title IX into law. Title IX forbids discrimination on the basis of gender in both high school and college sports. How did Title IX change women’s sports? Solve the problems and see. Year Number of girls playing high school sports 1972 817,073 1973 1,300,169 1984 1,779,972 1992 1,997,489 1996 2,367,936 Use front-end estimation to see how many more girls played in high school sports. 1. _______________ in 1973 than in 1972. 2. _______________ in 1984 than in 1972. 3. _______________ in 1992 than in 1972. 4. _______________ in 1996 than in 1972. 5. _______________ in 1996 than in 1992. The first NCAA® women’s basketball national championship tournament took place in Norfolk, Virginia, in 1982. Use the data in the table to make estimates.
Image of page 27

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
From NCAA Basketball Fast Break: Lessons Across the Curriculum With the NCAA, © 2003, NCAA.
Image of page 28
Image of page 29
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern