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Reading a Ruler
Welding Technology Education
The Rule
1 2 3 4 5
Basic Measuring Tool Used By– Students in Industrial and Technology
Education ProgramsAutomotive TechnologyDesign and DraftingElectronics/ManufacturingWoodworking/ConstructionAnd Others
The Rule
1 2 3 4 5
Basic Measuring Tool Used By–Workers in Industry
Architects/Drafters, Brick MasonsCarpenters, Machinist, PlumbersSheet Metal WorkersInstallersand many others
The Rule
Basic Measuring Tool Used by Homeowners to:
Calculate Square Footage/Volume
Measure Window and Door Openings
Determine Space Available for Furniture
Estimate Materials Needed, etc.
1 2 3 4 5
Reading a RulePretest
1 2 3 4 5
1 2 3 4 5
Reading a RulePretest Answers
1 2 3 4 5
1 2 3 4 5
8328
12
1
18
518
134
334
1452
41
85
431
2128
118
724
138
538
348
74
Reading a Rule
Fraction Review
A circle can be divided into many parts. For purposes of this review, the circle will be divided in to halves, quarters, and eights.
Reading a Rule
Fraction Review
Here the circle is divided into halves (two parts). If you add the two halves, what do you get for an answer?
1/2
1/2
Reading a Rule
Fraction Review
Here the circle is divided into quarters (four parts). If you add the four quarters, what do you get for an answer?
1/4 1/4
1/4 1/4
Reading a Rule
Fraction Review
Here the circle is divided into eight parts. If you add the eight parts, what do you get for an answer?
1/8 1/8
1/8
1/8
1/81/8
1/8
1/8
Reading a Rule
Fraction Review
An inch can also be divided into many parts. For purposes of this review, the inch will be divided in to halves, quarters, and eights.
1”
1
Reading a Rule
Fraction Review
Here the inch is divided into halves (two parts). If you add the two halves, what do you get for an answer?
1”
Halves
21
21
Reading a Rule
Fraction Review
Here the inch is divided into four parts. If you add the four parts, what do you get for an answer?
1”
Quarters
41
41
41
41
Reading a Rule
Fraction Review
Here the inch is divided into eight parts. If you add the eight parts, what do you get for an answer?
1”
Eights
81
81
81
81
81
81
81
81
Reading a Rule
What do you think the missing measurement is?
1 2
1/2” 1” 1 1/2”
Reading a Rule
What do you think the missing measurement is?
1 2
1/2” 1” 1 1/2” 2”
Reading a Rule
What are the missing measurements?
1 2
1/2” 1”
1 1/4”3/4”1/4”
Reading a Rule
What are the missing measurements?
1 2
1/2” 1”
1 1/4”3/4”1/4”
1”
Reading a Rule
What are the missing measurements?
1 2
1/2” 1”
1 1/4”3/4”1/4”
1” 1 1/2”
Reading a Rule
What are the missing measurements?
1 2
1/2” 1”
1 1/4”3/4”1/4”
1”
1 3/4”
1 1/2”
Reading a Rule
What are the missing measurements?
1 2
1/2” 1”
1 1/4”3/4”1/4”
1”
1 3/4”
1 1/2” 2”
Reading a Rule
What are the missing measurements?
1 2
1/8” 3/8” 5/8” 7/8” 1 1/8” 1 3/8”
1/4” 1/2” 3/4” 1” 1 1/4”
1 5/8”
2 1/2”
Reading a Rule
What are the missing measurements?
1 2
1/8” 3/8” 5/8” 7/8” 1 1/8” 1 3/8”
1/4” 1/2” 3/4” 1” 1 1/4”
1 5/8”
2 1/2”1 1/2”
Reading a Rule
What are the missing measurements?
1 2
1/8” 3/8” 5/8” 7/8” 1 1/8” 1 3/8”
1/4” 1/2” 3/4” 1” 1 1/4”
1 5/8”
2 1/2”1 1/2” 1 3/4”
Reading a Rule
What are the missing measurements?
1 2
1/8” 3/8” 5/8” 7/8” 1 1/8” 1 3/8”
1/4” 1/2” 3/4” 1” 1 1/4”
1 5/8”
2 1/2”1 1/2” 1 3/4”
1 7/8”
Reading a Rule
What are the missing measurements?
1 2
1/8” 3/8” 5/8” 7/8” 1 1/8” 1 3/8”
1/4” 1/2” 3/4” 1” 1 1/4”
1 5/8”
2 1/2”1 1/2” 1 3/4” 2”
1 7/8”
Reading a Rule
What are the missing measurements?
1 2
1/8” 3/8” 5/8” 7/8” 1 1/8” 1 3/8”
1/4” 1/2” 3/4” 1” 1 1/4”
1 5/8”
2 1/2”1 1/2” 1 3/4”
2 1/8”
2”
1 7/8”
Reading a Rule
What are the missing measurements?
1 2
1/8” 3/8” 5/8” 7/8” 1 1/8” 1 3/8”
1/4” 1/2” 3/4” 1” 1 1/4”
1 5/8”
2 1/2”1 1/2” 1 3/4” 2 1/4”
2 1/8”
2”
1 7/8”
Reading a Rule
What are the missing measurements?
1 2
1/8” 3/8” 5/8” 7/8” 1 1/8” 1 3/8”
1/4” 1/2” 3/4” 1” 1 1/4”
1 5/8”
2 1/2”1 1/2” 1 3/4”
2 3/8”
2 1/4”
2 1/8”
2”
1 7/8”
Reading a Rule
What are the missing measurements?
1 2
1/8” 3/8” 5/8” 7/8” 1 1/8” 1 3/8”
1/4” 1/2” 3/4” 1” 1 1/4”
1 5/8”
2 1/2”1 1/2” 1 3/4”
2 5/8”2 3/8”
2 1/4”
2 1/8”
2”
1 7/8”
Reading a RulePost Test
1 2 3 4 5
1 2 3 4 5
Reading a RulePost Test Answers
1 2 3 4 5
1 2 3 4 5
8328
12
1
18
518
134
334
1452
41
85
431
2128
118
724
138
538
348
74
Reading a Rule
Fraction Review
Just as a circle can be divided into eight parts, it can be divided in sixteen parts. See the circle on the right
1/8 1/8
1/8
1/8
1/81/8
1/8
1/8
16
16
16
Reading a Rule
Fraction Review
An inch is often divided into sixteen parts. Count the spaces in the inch on the right side of the slide. How many are there?
1”
Eights
81
81
81
81
81
81
81
81
1”
Sixteenths
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