If you find that working with fractions is a lot like

sliding down a slippery slope, then try...

 

 

FRACTION SUBTRACTION

 

 

 

 

Get a grip on the road to success

 with this hands-on game!

 

Grade Level 3

 

Don't just sing it, bring it!

 

 

 

 

Materials:

 

       4 pieces of different colored construction paper for each pair of   

           students.

       1 fraction die for each pair of students.

 

 

Preparation:

 

       On a piece of construction paper write the number 1 and the word  

          "WHOLE."

 

       Fold a second piece of paper in half - hamburger way - and write the  

           fraction 1/2 on each half.

 

       Fold the third piece in half and then in half again, so that you have 

           four  sections. 

    

       Label each section 1/4.

 

       Fold the fourth piece into eight sections and label each section 1/8.

 

       Cut each of the fractional papers into the correct  number of  parts 

          - 1/2  into 2  parts, 1/4 into 4 parts, etc.

 

        After all the sections have been cut out, place the WHOLE paper on    

            the bottom, with the two 1/2 sections on top of it. Next, place the four 

            1/4   sections   on top of  the 1/2's and finally the 1/8's on top of the 

            1/4's.

 

        Prepare a sufficient number of fraction dice so that each pair of 

            students will  have one die between them.

          

        Write fractions on each face of the die. For instance, 4/8, 2/8, 1/2, 2/4,  

            1/4, and 3/4, might comprise the 6 sides of one die.

           

 

Rules for Students:

 

"Well done is better than well said."

- Benjamin Franklin

 

      1. Students take turns rolling the die.

 

      2. When the die is rolled, the first player subtracts the fraction that is indicated from the  top layer of  the 1/8 sections, and places the fraction section (s) in a pile off to the side.

 

    3. The second student now rolls the die. Suppose the roll was 1/2. The
 student would remove 2 of the 1/8 sections (1/4 value) and then 1 of the 1/4
 sections for a total value of 1/2.

 

    4. The object of the game is to reach the "WHOLE" paper first.

 

                                                                                                                     

 

"You better cut the pizza in four pieces. Iím not hungry enough to eat eight."

-Yogi Berra