Reteaching

Name
TOPIC
13
Set A pages 679–696
DATA
Customary units can be used when
measuring length, capacity, and weight.
1 foot (ft) = 12 inches (in.)
Length
1 yard (yd) = 3 ft = 36 in.
DATA
1 mile (mi) = 1,760 yd = 5,280 ft
1 cup (c) = 8 fluid ounces (fl oz)
1 pint (pt) = 2 c = 16 fl oz
Capacity
1 quart (qt) = 2 pt = 4 c
DATA
1 gallon (gal) = 4 qt = 8 pt
1 pound (lb) = 16 ounces (oz)
Weight
1 ton (T) = 2,000 lb
Convert 26 quarts to cups.
Larger
Unit
26
Smaller
Converted to
×
=
Unit
Smaller Unit
× 4 cups =
104 cups
Remember when converting
from a larger unit to a smaller
unit, you multiply. Use the
conversion charts to help solve.
Reteaching
1. 9 yards =
inches
2. 5 miles =
yards
3. 215 yards =
4. 9 pints =
5. 372 quarts =
6. 1,620 gallons =
7. 9 pounds =
feet
fluid ounces
cups
pints
ounces
8. 5 tons =
pounds
9. 12 feet =
inches
Set B pages 697–708
DATA
Metric units are commonly used by
scientists to measure length, capacity,
and mass.
1 centimeter (cm) = 10 millimeters (mm)
Length
1 meter (m) = 100 cm = 1,000 mm
1 kilometer (km) = 1,000 m
Remember metric units can be converted
using multiples of 10. Use the conversion
charts to help.
1. 9 kilometers =
2. 55 centimeters =
DATA
3. 2 meters =
Capacity
and
Mass
1 liter (L) = 1,000 milliliters (mL)
1 gram (g) = 1,000 milligrams (mg)
1 kilogram (kg) = 1,000 g
Convert 30 centimeters to millimeters.
Larger
Unit
30
×
×
Smaller
Converted to
=
Unit
Smaller Unit
10 mm =
300 mm
meters
4. 9 liters =
5. 4 grams =
millimeters
centimeters
milliliters
milligrams
6. 5 kilograms =
grams
7. 8 kilograms =
grams
8. 5 grams =
milligrams
Topic 13 Reteaching
723
Set C pages 709–714
The perimeter of Ted’s pool is 16 yards. The
pool is 3 yards wide. He has a 150-square
foot plastic cover. Is Ted’s plastic cover large
enough to cover his pool?
Remember to label your answer with the
appropriate unit.
1. Find n.
P = 108 inches
Use the formula for perimeter to find the
length. Substitute the numbers you know.
Perimeter = (2 × /) + (2 × w)
16 = (2 × /) + (2 × 3)
/=5
The length of the pool is 5 yards.
Convert yards to feet.
3 yards wide × 3 feet = 9 feet wide
18 inches
n
2. Find the area.
A=
sq m
4m
9m
3. Find the perimeter of the square.
5 yards long × 3 feet = 15 feet long
A = 15 × 9
A = 135
2 12 yards
The area of the pool is 135 square feet.
135 6 150, so Ted’s plastic cover is large
enough to cover his pool.
Set D pages 715–720
Think about these questions to help you
be precise.
Thinking Habits
• Am I using numbers, units,
and symbols appropriately?
Remember to give an explanation that is clear
and appropriate.
A puppy pen is 4 feet wide and 5 feet long.
1. Is 21 square feet of fabric large enough
to make a mat for the pen? Explain.
• Am I using the correct
definitions?
• Am I calculating accurately?
•Is my answer clear?
724
Topic 13 Reteaching
2. Puppy fencing comes in sizes that are
12 feet, 24 feet, and 30 feet in length.
Which length would be the best for the
pen? How much, if any, will have to be
cut off to fit the pen?
© Pearson Education, Inc. 4