Make Customary (Inch) Rulers 2001

      This activity produces 4 rulers:
one marked in inches,
one marked in half-inches,
one marked quarter-inches,
one marked in eighth-inches.
      You may fold the paper to reveal
only one ruler at a time.
 
 
 
Materials Needed:     an 8" by 11" sheet of paper, a pencil
To Assemble:
Pre Step:     From an 8 1/2" by 11" sheet of paper, cut off
a 1/2" strip to produce an 8" by 11" sheet of paper.
1st:     Hold the paper length-wise. At the TOP EDGE ONLY,
fold the paper in half and in half again so the top edge is folded in quarters.
2nd:     Open the paper up so it is no longer folded.
With a pencil mark the creases.
3rd:     Create the areas of the paper in which to place the rulers.
Do this by folding the paper widthwise in half and in half again to make a paper folded in quarters.
4th:     Use the pencil marks to mark units on future rulers.
See step 3, above.
5th:     On the top ruler, carefully estimate and mark the position of
the missing inch markers. Label each inch marker with a number.
6th:     The inch ruler is complete.
Redraw all of this ruler in the second ruler position.
Estimate and mark the half-inch marks USING MARKS OF EQUAL HEIGHT BUT SHORTER THAN THE INCH MARKS.
7th:     The half-inch ruler is complete.
Redraw all of this ruler in the third ruler position.
Estimate and mark the quarter-inch marks USING MARKS EQUAL IN HEIGHT BUT SHORTER THAN THE HALF-INCH MARKS.
8th:     The quarter-inch ruler is complete.
Redraw all of this ruler in the last ruler position.
Estimate and mark the eighth-inch marks USING MARKS EQUAL IN HEIGHT BUT SHORTER THAN THE QUARTER-INCH MARKS.
9th:     All rulers are now ready for use.
Fold the paper to display only the ruler you wish to use.

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© 2005, Agnes Azzolino
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