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UNDERLYING SKILLS AND CONCEPTS:
estimate measurement
vocabulary
relative size of units
Know Reasonableness of Measurements
a
K
ey Ide
To check the reasonableness of a measurement,
use the following tables.
Remember:
1 inch is about the width of your ruler.
1 foot is the length of your ruler.
For Length
1 foot ! 12 inches
1 yard ! 3 feet
1 mile ! 5,280 feet
1 yard is about the height of a bicycle.
1 mile is about how far you can
walk in 20 minutes.
E x am p l E
For Volume
1 cubic foot ! 1,728 cubic inches
1 cubic yard ! 27 cubic feet
1
What is the most reasonable area of a living room rug?
80 square feet
80 cubic feet
IN.
80 feet
Since area is measured in square units, the most reasonable
area for the rug is 80 square feet.
2
1
E x am p l E
How long is
this page?
What is most likely to be the height of the door?
7 feet
7 yards
7 miles
2
7 inches
Since you can hold your hands 7 inches apart,
you don’t need to consider the 7 inches choice.
page 260
3
Since many adults are around 6 feet tall,
7 feet is the most reasonable answer.
Chapter 22 – Lesson 4
D – © CSL Associates, Inc. All rights reserved.
For Area
1 square foot ! 144 square inches
1 square yard ! 9 square feet
Name
P RAC T I C E
Choose the most appropriate measure for each.
1. The area of a bird house floor
A.
B.
36 inches
36 square inches
C.
36 cubic inches
C.
45 cubic inches
2. The length of a dog’s leash
A.
B.
45 inches
45 square inches
3. The height of a flag pole
A.
B.
10 inches
C.
10 feet
10 yards
D.
10 miles
C.
2 yards
D.
2 miles
C.
100 yards
D.
100 miles
4. The distance a person lives from school
A.
B.
1 inch
2 feet
5. The length of a football field
A.
100 inches
B.
100 feet
D – © CSL Associates, Inc. All rights reserved.
Answer each question with Yes or No.
6. Lee claims that he walked 10 miles in 10 minutes.
It this a reasonable statement?
7. Mary claims that the cover of her notebook has
an area of about 100 square inches.
It this a reasonable statement?
8. Nigel claims that the the volume of his cup is
about 2.5 cubic feet.
It this a reasonable statement?
Math
Reasoning
No
Yes
No
Measurement
MR 1.1
9. Which of the following can be used to find the number of inches in a mile?
Circle the correct choice.
A.
12 5,280
Chapter 22 – Lesson 4
B.
5,280
12
C.
12 1,728
D.
1,728
12
page 261
MCX94.HW.CL.G4.FM&Lesson.v211
8/2/04
19:16
Page 176
Name
…at home!
P RAC T I C E
Choose the most appropriate measure for each.
1. The area of a wall mirror
A.
B.
96 inches
96 square inches
C.
96 cubic inches
C.
45 cubic inches
2. The length of a skate lace (or shoe lace)
A.
B.
45 inches
45 square inches
3. The height of a basketball net
A.
B.
10 inches
C.
10 feet
10 yards
D.
10 miles
C.
2 yards
D.
2 miles
C.
100 yards
D.
100 miles
4. The distance a person bikes to the park
A.
B.
1 inch
2 feet
5. The distance between two cities
A.
100 inches
B.
100 feet
6. Lee claims that he walked 10 miles in 10 minutes.
It this a reasonable statement?
7. Mary claims that the cover of her notebook has
an area of about 100 square feet.
It this a reasonable statement?
8. Nigel claims that the the volume of the sink is
about 2.5 cubic feet.
It this a reasonable statement?
Math
Reasoning
No
No
Yes
Measurement
MR 1.1
9. Which of the following can be used to find the number of square inches in
a square yard? Circle the correct choice.
A.
page 176
9 144
B.
144
9
C.
12 144
Home Resource and Homework
D.
144
12
Chapter 22 Lesson 4
D – © CSL Associates, Inc. All rights reserved.
Answer each question with Yes or No.
MCX94TEG4Ch01_32.v8.5.2 2/26/01 19:04 Page 481
Name
P RAC T I C E
Choose the most appropriate measure for each.
1. The area of a bird house floor
A.
B.
36 inches
36 square inches
C.
36 cubic inches
C.
45 cubic inches
2. The length of a dog’s leash
A.
B.
45 inches
45 square inches
3. The height of a flag pole
A.
B.
10 inches
C.
10 feet
10 yards
D.
10 miles
C.
2 yards
D.
2 miles
C.
100 yards
D.
100 miles
4. The distance a person lives from school
A.
B.
1 inch
2 feet
5. The length of a football field
A.
100 inches
B.
100 feet
D – © CSL Associates, Inc. All rights reserved.
Answer each question with Yes or No.
6. Lee claims that he walked 10 miles in 10 minutes.
It this a reasonable statement?
7. Mary claims that the cover of her notebook has
an area of about 100 square inches.
It this a reasonable statement?
8. Nigel claims that the the volume of his cup is
about 2.5 cubic feet.
It this a reasonable statement?
Math
Reasoning
No
Yes
No
Measurement
MR 1.1
9. Which of the following can be used to find the number of inches in a mile?
Circle the correct choice.
A.
12 5,280
Chapter 22 – Lesson 4
B.
5,280
12
C.
12 1,728
Student Book Page
D.
1,728
12
page 261
Name
…at home!
P RAC T I C E
Choose the most appropriate measure for each.
1. The area of a wall mirror
A.
B.
96 inches
96 square inches
C.
96 cubic inches
C.
45 cubic inches
2. The length of a skate lace (or shoe lace)
A.
B.
45 inches
45 square inches
3. The height of a basketball net
A.
B.
10 inches
C.
10 feet
10 yards
D.
10 miles
C.
2 yards
D.
2 miles
C.
100 yards
D.
100 miles
4. The distance a person bikes to the park
A.
B.
1 inch
2 feet
5. The distance between two cities
A.
100 inches
B.
100 feet
6. Lee claims that he walked 10 miles in 10 minutes.
It this a reasonable statement?
7. Mary claims that the cover of her notebook has
an area of about 100 square feet.
It this a reasonable statement?
8. Nigel claims that the the volume of the sink is
about 2.5 cubic feet.
It this a reasonable statement?
Math
Reasoning
No
No
Yes
Measurement
MR 1.1
9. Which of the following can be used to find the number of square inches in
a square yard? Circle the correct choice.
A.
page 176
9 144
B.
144
9
C.
12 144
Home Resource and Homework
D.
144
12
Chapter 22 Lesson 4
D – © CSL Associates, Inc. All rights reserved.
Answer each question with Yes or No.