Copyright@Ed2netLearning,Inc1 CUSTOMARY LINEAR UNITS GRADE 3.
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copyright@Ed2netLearning,Inc 1
CUSTOMARY LINEAR UNITS
GRADE 3
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Hello, How are you doing?Today, we are going to start a new lesson on
customary Linear Units.
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UnitA fixed amount that is used as a standard of
measurement is defined as Unit.Example – the length of a box is 6 cm.
The measurement of distance between two end points is defined as Length.
Example – the length of the line segment is 3 cm.
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Customary units of lengthCustomary Units of length are Foot Inch Yard mile
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Customary Units or Metric UnitsMost Countries use the metric system of
measurement. Example – cm, m, km, kg, g, L
The United States uses the Customary Units of measurement.
Example – feet, inch, yard, mile
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Relation in Customary Units of length1 foot = 12 inch (in)1 yard = 36 inch
= 3 feet1 mile = 1,760 yards
= 5,280 feet
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Finding length using customary units
Line up one end of the object to the “0” mark of the ruler.
Find the inch mark that is closest to the other end of the object.
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The Length of the line segment is 3 inch.
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Find the length of the line segment shown using inch ruler.
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Conversion of units To convert larger unit to smaller, multiply
with the conversion number.Example – 3 feet = 12 x 3 inch
= 36 inch To convert smaller unit to larger, divide
with the conversion number.Example – 48 inch = 48/12
= 4 feet
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Which is greater unit?a) Inchb) feetc) Miled) yard
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Which is greater than 9 feet?a) 110 inchb) 107 inchc) 100 inchd) 90 inch
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Which tool is used to draw a line of length 8 ½ inch.
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What is the estimated height of the tennis racket?a) 2 ftb) 2 yardc) 2 mile
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ASSESSMENT
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1. In Baseball, the distance between first and second base is 60 feet. How many yards is this distance?
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2. What is the length of the dropper shown below?
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3. Which is not correct?a) 2 feet = 26 inchb) 2 feet = 24 inchc) 3 feet = 36 inchd) 3 yard = 9 feet
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4. Write the number that makes the sentence true.5 yd = --- feet
a) 15b) 12c) 18d) 10
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5. Victor wants to measure the length of his cat’s tail. Which tool is he most likely to use?
a) Inch rulerb) Measuring tapec) Paper clipsd) Yard stick
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6. What unit would you use to measure the distance of the school lawn?a) Inchb) Feetc) Miled) yard
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7. A shoe is about 1 long.
a) Inchb) Foot c) Yard
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8. Kelvin is practicing her shot put. She throws the Shot Put 96 inch. Which is true?
a) She throws 6 feetb) She throws 7 feetc) She throws 8 feetd) She throws 9 feet
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9. The window of the hall is 4 feet wide. How many inches wide is the window?
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10.Complete the following.6 ft 3 in = ----- in.
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Recap Unit Customary unit of length Customary unit or Metric Unit Conversion unit Solved examples Practice problems
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Good Work!Now practice worksheets on the lesson.
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