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Mathematics Resources

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1.00

.166

.125

.375

.625

 

.83

.875

10%

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25%

75%

33%

66%

83%

37.5%

62.5%

16.6%

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12%

2.5%

55%

65%

49.8%

 

 

 

This activity works well as a warm-up activity at the beginning of class.  Once you have your classroom procedures down, it will probably take about 3 to 5 minutes, then you can start your lesson for the day.

Begin by hanging a string along one wall of your room to serve as a number line.  Copy, laminate, and cut out one set of cards.  Punch a hole in both the top and the bottom of the card. 

Each day, have a student draw a card out of a basket.  Then, have the student place the card on the string number line using a paper clip hanger.  The student will need to use proportional reasoning to determine where his or her card should be placed.  Students could work in pairs instead of individually for this part of the activity.  Next, have a brief class discussion to determine if the class agrees or disagrees with the placement of the card. 

You as the teacher may choose to place the “0” and the “1”.  However, you might choose to let the “0” and the “1” be the first cards to be placed, and let the students place them.   Later in the year after all of the cards have been placed, you might choose to start over…however this time, hold off on the placement of the “1” and enrich the classroom discussions!

The blank cards are for extending the activity.  For example, you might give a student a blank card and ask him or her to generate a fraction between 2 given fractions already placed on the string number line.