Page 25 - C:\Users\azizu\Documents\Flip PDF Professional\Matematics-Form-1-1\
P. 25

1.3  Positive and Negative Fractions
                                                                                   LEARNING
                                                                                         STANDARDS
                     How do you represent positive and negative                 Represent positive and
       CHAPTER
       1            fractions on a number line?                                 negative fractions on
                                                                                number lines.
                                                  6      Classroom
                                                          Flip

               Aim: To explore the representation of positive and negative fractions on a number
                     line.
               Instruction:  •  Explore by yourself before the lesson begins and discuss in groups
                               of four during the lesson.
                            •  Open the folder downloaded from page vii.


               1.  Open the file Fraction number line.ggb using GeoGebra.

               2.  Click  and drag the slider
                   ‘Numerator’ and ‘Denominator’
                   to define a fraction.

               3.  Click at the button ‘Change sign’
                   to interchange between positive
                   and negative.

               4.  Observe  the  position  of  the
                   fraction  defined  on the  number
                   line.
               5.  Discuss  the  methods  used  to
                   determine  the  position of  a
                   fraction on a number line.





               Representation  of fractions on a number line is the same as that of integers.  Positive
               fractions are fractions  more than zero whereas  negative fractions are fractions  less
               than zero.


                                     –1 1  means1 1 less than 0  1 1 2  means1 1 2  more than 0
                                       2
                                               2
                                      –  1 2  means  1 less than 0  1  means  1 2  more than 0
                                                            2
                                               2
                      –2     –1 1      –1       – 1       0        1 2      1      1 1       2
                                                                                    2
                                                 2
                                2


           14
           Chapter 1



       01 TB Math F1.indd   14                                                                        10/20/16   11:55 AM
   20   21   22   23   24   25   26   27   28   29   30