METRICS IN THE HOME AND IN THE STORE
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Granderson, Mary Senn Metro Academy
1. Students will be able to compare Metric Measurements used in common household
items to their English equivalents.
2. Students will be able to compare sizes of various items of equal weight, volume
EQUIPMENT AND MATERIALS
Standard English Measuring Cup Scissors
Ruler, Inches and Centimeter Liter size Containers
Balls of String Quart size Containers
Graduated Cylinder Several one pound size items
Water Metric Weights
A. Measuring Lengths (Inches and Centimeters)
Have students guess the horizontal and vertical lengths of their desk or
tables. Next have them actually measure them in inches and in centimeters. Have them
compare their results. How accurate were their guesses?
Have students measure six inches of string, set it aside. Measure six
centimeters of string. Compare the two lengths of string. Explain that an inch is
about two and a half times larger than a centimeter. (1 inch = 2.54 cm).
Have students measure 36 inches of string, put it aside. Measure approximately
100 centimeters of string. Compare the two lengths of string. (36 inches = 1 yard),
(39.37 inches = 1 meter) and (1 meter = 100 centimeters). Discuss the difference in
length of the yard and the meter.
B. Measuring Volume (Quarts and Liters)
Have students examine a quart size container and a liter size container.
Discuss which one might hold the largest amount.
Have students fill the liter container with water. Pour the water from the
liter container into the quart container. Measure the amount that remains, first
using the measuring cups and then using the graduated cylinder. (At this time you may
want to discuss the fact that a liter is larger than a quart and that 1 ounce = 30
C. Measuring Weights (Pounds and Grams)
Have students observe various one pound size containers. Have students observe
the Metric weights. Compare the one gram size Metric weight with the one pound size
container. (l lb = 454 grams).