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Read a tape measure. Measuring tools. Tape measure Ruler Yard stick Folding ruler Measuring wheel Scale ruler. QUESTIONS. Who wants to maximize their proficiency? Which tool do you think is a primary measuring tool in the Automotive field?
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Measuring tools • Tape measure • Ruler • Yard stick • Folding ruler • Measuring wheel • Scale ruler
QUESTIONS • Who wants to maximize their proficiency? • Which tool do you think is a primary measuring tool in the Automotive field? • Today you are going to learn how to use a ruler to make proper measurements in whole and fractional units.
FRACTIONS OF AN INCH HALF INCH INCREMENTS http://www.rickyspears.com/rulergame/
FRACTIONS OF AN INCH One-quarter inch measures
FRACTIONS OF AN INCH One-eighth of an inch
FRACTIONS OF AN INCH Two-sixteenths of an inch or One-eighth of an inch
FRACTIONS OF AN INCH Three-sixteenths of an inch
FRACTIONS OF AN INCH Four-sixteenths of an inch or Two-eighths of an inch or One-fourth of an inch
FRACTIONS OF AN INCH Five-sixteenths of an inch
FRACTIONS OF AN INCH Six-sixteenths of an inch or Three –eights of an inch
FRACTIONS OF AN INCH Seven-sixteenths of an inch
FRACTIONS OF AN INCH Eight-sixteenths of an inch or Four-eighths of an inch or Two-fourths of an inch or One-half of an inch
FRACTIONS OF AN INCH Nine-sixteenths of an inch
FRACTIONS OF AN INCH Ten-sixteenths of an inch or Five-eighths of an inch
FRACTIONS OF AN INCH Eleventh-sixteenths of an inch
FRACTIONS OF AN INCH Twelve-sixteenths of an inch or Six-eighths of an inch or Three-fourths of an inch
FRACTIONS OF AN INCH Thirteen-sixteenths of an inch
FRACTIONS OF AN INCH Fourteen-sixteenths of an inch or Seven-eighths of an inch
FRACTIONS OF AN INCH Fifteen-sixteenths of an inch
FRACTIONS OF AN INCH Sixteen-sixteenths of an inch or One inch
FRACTION RULES RULES 1. To add fractions you must have a common denominator 2. Reduce fractions
COMMON DENOMINATOR How do you get a common denominator? 8 can be the common denominator when the fractions are in fourths or eighths. 16can be the common denominator for all rulers marked in 16ths. Use 32as the common denominator when the ruler is marked in 32nds.
COMMON DENOMINATOR Multiply top and bottom by the same value to change the denominator correctly.
ADDING MEASURES • Get the common denominator • Rewrite the fractions
ADDING MEASURES • Get the common denominator • Rewrite the fractions • Add the numerators • Carry the denominator forward
ADDING MEASURES • Get the common denominator • Rewrite the fractions • Add the numerators • Carry the denominator forward • Reduce the answer
ADDING MEASURESwith WHOLE NUMBERS • Add the whole numbers (like always) • Get the common denominator • Rewrite the fractions • Add the numerators • Carry the denominator forward • Reduce the answer
REMEMBERCOMMON DENOMINATORADDING & SUBTRACTING How do you get a common denominator? 8 can be the common denominator when the fractions are in fourths or eighths. 16can be the common denominator for all rulers marked in 16ths. Use 32as the common denominator when the ruler is marked in 32nds.
COMMON DENOMINATOR Multiply top and bottom by the same value to change the denominator correctly.
SUBTRACTING MEASURES • Get the common denominator • Rewrite the fractions
SUBTRACTING MEASURES • Get the common denominator • Rewrite the fractions • Subtract the numerators • Carry the denominator forward
SUBTRACTING MEASURES • Get the common denominator • Rewrite the fractions • Subtract the numerators • Carry the denominator forward • Reduce the answer
SUBTRACTING MEASURESwith WHOLE NUMBERS • Subtract the whole numbers (like always) • Get the common denominator • Rewrite the fractions • Subtract the numerators • Carry the denominator forward • Reduce, if necessary
MULTIPLYING MEASURES • One-half of 1 inch means or of 1 inch “of is another way to say times”
MULTIPLYING MEASURES Two times one-half is adding one-half two times. 2 X = 1 + =1