CCSS
a fraction
1/b as the quantity
formed
by 1numbers,
part when a
NS 3.0G3.NF.1
StudentsUnderstand
understand
the relationship
between
whole
whole is partitioned into b equal parts; understand a fraction a/b as the quantity formed by
simple fractions, and decimals.
a parts of size 1/b.
UNDERLYING SKILLS AND CONCEPTS:
find a fraction of a set;
meaning of fractions
Identify Fractions of a Set of Group
A fraction can describe a part of a set
or group.
K
a
ey Ide
The gray
ones only
E x am p l E
3
4
All the
marbles
1
Kimiko had 6 bananas. She ate one.
What fraction of the bananas did she eat?
She ate 1 out of 6 bananas.
She ate 1
of the bananas.
6
What fraction of the bananas
does she have left?
5 out of 6 bananas are left.
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She has 5 of the bananas left.
6
E x am p l E
2
What fraction of the stickers are triangles?
Count the number of stickers in all.
There are 7 stickers.
Count the number of triangles.
There are 3 triangles.
3 out of 7 stickers are triangles.
So 3
of the stickers are triangles.
7
page 200
Chapter 17 – Lesson 4
Name
P RAC T I C E
Write the fraction that answers each question.
1. How many trucks are gray?
3. How many ducks are gray?
2
3
2. How many books are gray?
2
4
4. How many hats are gray?
4
6
2
8
Show each fraction.
5. Color 3 of the mittens.
6. Color 7 of the cats.
7. Color 3 of the dogs.
8. Color 4 of the fish.
C – © CSL Associates, Inc. All rights reserved.
4
6
Math
Reasoning
8
4
Number Riddle
MR 1.1
9. When is 2 less than 1 of a set?
2
When you take
Chapter 17 – Lesson 4
1
3
of a group of 6.
page 201
MCX94.HW.CL.G3.FM&Lesson.v211
8/3/04
13:56
Page 136
Name
…at home!
P RAC T I C E
Write the fraction that answers each question.
1. How many trucks are white?
3. How many ducks are white?
1
3
2. How many books are white?
2
4
4. How many hats are white?
2
6
6
8
Show each fraction.
5. Color 2 of the mittens.
6. Color 8 of the cats.
7. Color 5 of the dogs.
8. Color 1 of the fish.
6
Math
Reasoning
8
4
Number Riddle
9. When is 3 less than 1 of a set?
3
When you take
1
3
MR 1.1
1
of th e se t
3
of a group of 10
3 t o ke n s
or more.
page 136
Home Resource and Homework
Chapter 17 Lesson 4
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4
MCX94TEG3Ch01_32.v8.9.3 2/21/01 14:48 Page 371
Name
P RAC T I C E
Write the fraction that answers each question.
1. How many trucks are gray?
3. How many ducks are gray?
2
3
2. How many books are gray?
2
4
4. How many hats are gray?
4
6
2
8
Show each fraction.
5. Color 3 of the mittens.
6. Color 7 of the cats.
7. Color 3 of the dogs.
8. Color 4 of the fish.
C – © CSL Associates, Inc. All rights reserved.
4
8
6
Math
Reasoning
4
Number Riddle
9. When is 2 less than 1 of a set?
2
When you take
Chapter 17 – Lesson 4
1
3
of a group of 6.
MR 1.1
1
of the set
2
2 tokens
Student Book Page
page 201
Name
…at home!
P RAC T I C E
Write the fraction that answers each question.
1. How many trucks are white?
3. How many ducks are white?
1
3
2. How many books are white?
2
4
4. How many hats are white?
2
6
6
8
Show each fraction.
5. Color 2 of the mittens.
6. Color 8 of the cats.
7. Color 5 of the dogs.
8. Color 1 of the fish.
6
Math
Reasoning
8
4
Number Riddle
9. When is 3 less than 1 of a set?
3
When you take
1
3
1
of t he se t
3
of a group of 10
3 t okens
or more.
page 136
MR 1.1
Home Resource and Homework
Chapter 17 Lesson 4
C – © CSL Associates, Inc. All rights reserved.
4