Measurement - PowerPoint PPT Presentation

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  1. Measurement Measure Twice Cut Once Nancy Overton Career Choices Upper Bucks AVTS

  2. Secrets of Reading a Ruler Revealed

  3. There is nothing to be afraid of! • Once you learn the tricks of the trade it’s easy • Practice makes perfect • There is no escaping it

  4. 2 1 4 3 7 short long It’s all in the details • The inches on this ruler are divided into 8 equal parts • Notice that the lines are different lengths 6 8 5

  5. Start at the beginning • Inch lines are the longest • Lines on a tape measure go across the tape • Often the numbers are to the side of the line

  6. 21/2 31/2 41/2 11/2 1/2 Half Inch Lines 1/2 • The next longest lines are the half inch lines • Half inch lines are in between the whole numbers 1/2

  7. 1/4 E A B C D Quarter Inch Lines ¼ ¾ • Quarter inch lines are ¼ and ¾ • Shorter than the ½” line, but not the shortest line • ¼” line is closer to the smaller number • ¾” line is closer to the larger number 3/4 Now you try

  8. 3/8 7/8 1/8 5/8 Eighth Inch Lines 1/8, 3/8, 5/8, 7/8 • Four eighth inch lines 1/8”, 3/8”, 5/8”, 7/8” • Shorter than quarter inch lines • Lines can be memorized or counted • Always count the lines that length and longer • Notice all the numerators are odd numbers 1,3,5,7

  9. 3/8 7/8 1/8 5/8 More about Eighth Inch Lines • 1/8” lines are closest to the smaller number • 3/8” are before the ½” line • 5/8” are after the ½” line • 7/8” lines are closest to the larger number Let’s Practice 1/2

  10. 3/8 7/8 1/8 5/8 A B D C I E F J G H L K Practice Eighth Inch Lines • Four eighth inch lines 1/8”, 3/8”, 5/8”, 7/8” Practice, Practice, Practice 1/2

  11. Sixteenth Inch • Sixteenth lines are the very smallest • 1/16, 3/16, 5/16, 7/16, 9/16, 11/16, 13/16, 15/16 • Count all the lines from the smaller whole number • With a lot of practice these lines can be memorized too www.jimssupply.com

  12. Practice Makes Perfect • Visit these websites to practice your skills • www.rickyspears.com/rulergame • www.funbrain.com/measure/index.html

  13. Measurement The only thing to fear is fear itself. You can do it!