ffirs.indd

(Brent) #1

173
CChapter 18hapter 18





    • = x 0 1 2 3 4 5 6 7 8 9 ( ) % < > + - = x 0 1 2 3 4 5 6 7 8 9 ( )
      % < > + - = x 0 1 2 3 4 5 6 7 8 9 ( ) % < > + - = x 0 1 2 3 4 5 6 7 8 9
      ( ) % < > + - = x 0 1 2 3 4 5 6 7 8 9 ( ) % < > + - = x 0 1 2 3 4 5 6 7 8
      9 ( ) % < > + - = x 0 1 2 3 4 5 6 7 8 9 ( ) % < > + - = x 0 1 2 3 4 5 6 7
      8 9 ( ) % < > + - = x 0 1 2 3 4 5 6 7 8 9 ( ) % < > + - = x 0 1 2 3 4 5 6
      7 8 9 ( ) % < > + - = x 0 1 2 3 4 5 6 7 8 9 ( ) % < > + - = x 0 1 2 3 4 5
      6 7 8 9 ( ) % < > + - = x 0 1 2 3 4 5 6 7 8 9 ( ) % < > + - = x 0 1 2 3
      FFRACTIONS RACTIONS
      MMADE EASYADE EASY
      When I was in elementary school, I noticed that many of my teachers
      had problems when they had to explain fractions. But fractions are
      easy.
      WORKING WITH FRACTIONS
      We work with fractions all the time. If you tell the time, chances are
      you are using fractions (half past, a quarter to, a quarter past, etc.).
      When you eat half an apple, this is a fraction. When you talk about
      football or basketball (half-time, second half, three-quarter time,
      etc.), you are talking about fractions.
      We even add and subtract fractions, often without realizing it or
      thinking about it. We know that two quarters make a half. Half-time
      during a game is at the end of the second quarter. Two quarters
      make one half.
      cc18.indd Sec1:173 18 .indd Sec 1 : 173 1/9/07 8:40:35 AM 1 / 9 / 07 8 : 40 : 35 AM



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