Transcript Converting Units of Measure Day six - Mendenhall-Jr-PLC

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Parsheena Berch
Resource: JBHM material
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Converting Units of Measure
M. 4b Convert units within a given measurement
system to include length, weight/mass, and volume.
(DOK 1)
• Today you will work with converting length in
the metric system.
• This is important because sometimes a
carpenter may have to convert units when
building a house or building.
• Can you think of other uses for this?
One’s and Two’s
• All number ones write down the memory aid
for the metric system and what each word
stands for.
• All number twos explain how to use it to
convert units of measure.
What did you write?
• Who wants to share what they wrote?
• Did you all get this correct?
• “Mighty King Henry Died Unbelievably
Drinking Chocolate Milk”
• Mega Kilo Hecto Deka (Unit Base) Deci Centi
Milli
Meter
Liter
Gram
• The metric unit for length is meter.
• Can you say all the different units of length
from the memory aid?
• (megameter, kilometer, hectometer,
dekameter, meter, decimeter, centimeter, and
millimeter)
Common Metric Conversions for
Length
• 1 centimeter (cm) = 10 millimeters (mm)
• 1 meter (m) = 100 centimeters (cm) = 1,000
millimeters (mm)
• 1,000 meters (m) = 1 kilometer (km)
Work the following examples with
me.
• How many centimeters are in 5 meters?
• 5 meters = 500 centimeters
Example #2
• Convert 89 millimeters to centimeters.
• 89 millimeters = 8.9 centimeters
Example #3
• 76,500 millimeters = ____ meters
• 76,500 millimeters = 76.5 meters
Example #4
• Convert 7.3 kilometers to meters.
• 7.3 kilometers = 7,300 meters
Example #5
• How many centimeters are in 3.2 kilometers?
• 3.2 kilometers = 320,000 centimeters
Your Turn!!!
1.
2.
3.
4.
5.
2,900 millimeters = ____ centimeters
754 centimeters = ____ meters
4 kilometers = ____ meters
3 kilometers = ____ millimeters
7.65 meters = ____ centimeters
• 290 7.54 4,000 3,000,000 765
Mix it up!!!
•
•
•
Are the units in this question for measuring volume, mass/weight, or length?
Are these units English or metric?
Which memory aid is needed to solve this one?
•
•
•
•
•
•
1) 49 milligrams = ____ grams
2) 18 gallons = ____ quarts
3) 176 cups = ____ gallons
4) 9 kilometers = ____ meters
5) 72 yards = ____ feet
6) 88 pints = ____ quarts
• 7) 4.6 liters = ____ milliliters
1) Jason is fencing in his yard. He needs 234 feet of fencing
material. The building supply store has fencing panels that are 2
yards each. If he uses the panels, how many will he need to
purchase?
• Solution: Students must first convert the two measurements
to the same unit.
• There are two possible ways of working the problem.
• Convert 234 feet to yards by dividing 234 by 3, which equals
78 yards.
• Then divide the 78 yards by 2 (panels are 2 yards each) which
equals 39.
• Jason needs 39 panels.
• Convert 2 yards to feet by multiplying by 3, which means that
each panel is 6 feet long. Then divide 234 feet by 6 feet which
equals 39. Jason needs 39 panels.
Independent Practice: (DOK 2)
If time allows:
• Arrange students in groups of two, three or four.
• Each group will create four original word problems
dealing with measurement. (Two conversions from
small to large and two from large to small.)
• Divide a sheet of paper into four pieces and write
one problem on each piece with work shown on the
back.
• Exchange your cards with another group and practice
solving the other groups’ problems.
Closure:
• We have finished the objective and now will
be ready to practice.
• State what you have learned today.
Homework:
• Work page 354 numbers 6-14 and page 356
numbers 9-20 in the Envision textbook.