CCSS
Explainrepresented
equivalence by
of fractions
special
cases,
and compare
NS 3.1G3.NF.3
Compare fractions
drawingsin or
concrete
materials
to show
fractions by reasoning about their size.
1
equivalency and to add and subtract simple fractions in context (e.g., of
2
CCSS G3.NF.3d
Compare two fractions
with
the
same
numerator
or
the
same
2
a pizza
is the same
amount
as 4 of
another that
pizzacomparisons
that is the same
denominator
by reasoning
about
their size.
Recognize
are valid only
when the two fractions refer
Record the results of comparisons with
3 to the same whole.
1
size; show that is larger than 4).
the symbols >, =, or <, and8 justify the conclusions,
e.g., by using a visual fraction model.
UNDERLYING SKILLS AND CONCEPTS:
identify fractions;
compare fractions
Order Fractions
To order 3 or more fractions, you
compare two fractions at a time.
a
K
ey Ide
E x am p l E
Put these fractions in order from
least to greatest.
1
2
3 and 1 .
Compare 4
1
3
Color a square to show each fraction.
3
4
1
2
3
3
4
1
3
3 is more than 1 .
You can see that 1
3
4
3
Step 3:
1 and 1 .
Compare Step 1:
3
2
3 and 1 .
Compare 4
2
1
2
3
4
1
2
1
3
1 is more than 1 .
You can see that 2
3 is more than 1 .
You can see that 4
2
3
The fractions from least to greatest
1 , 1 , and 3 .
are 3
page 210
2
4
Chapter 18 – Lesson 3
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3
4
Step 2:
Name
P RAC T I C E
Order the fractions from least to greatest.
1, 2, 3
1. 2
3
2, 1, 5
2. 8
3
3 1 2
, , 8 2 3
2
8
1 5 2
, , 4 8 3
5, 1, 2
3. 6
4
3, 5, 3
4. 3
8
6
4
C – © CSL Associates, Inc. All rights reserved.
5
8
1 2 5
, , 2 3 6
Math
Reasoning
3 3 5
, , 8 4 6
Number Sense
MR 2.3
3 and 5 .
5. Explain how to compare 8
8
3 5.
I compare the numerators. Since 3 5, 8
Chapter 18 – Lesson 3
8
page 211
MCX94.HW.CL.G3.FM&Lesson.v211
8/3/04
13:56
Page 142
Name
…at home!
P RAC T I C E
Order the fractions from least to greatest.
1, 1, 3
1. 3
2, 1, 4
2. 8
3
1 3 1
, , 3 8 2
2
5, 5, 3
4. 3
8
2 1 2
, , 6 2 3
Math
Reasoning
8
1 4 2
, , 4 8 3
2, 1, 2
3. 6
4
6
4
5 3 5
, , 8 4 6
Number Sense
MR 2.3
5 and 3 .
5. Explain how to compare 8
8
5 3.
I compare the numerators. Since 5 3, 8
page 142
Home Resource and Homework
8
Chapter 18 Lesson 3
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2
MCX94TEG3Ch01_32.v8.9.3 2/21/01 14:48 Page 389
Name
P RAC T I C E
Order the fractions from least to greatest.
1, 2, 3
1. 2
3
2, 1, 5
2. 8
3
3 1 2
, , 8 2 3
C – © CSL Associates, Inc. All rights reserved.
2
3, 5, 3
4. 3
8
1 2 5
, , 2 3 6
Math
Reasoning
8
1 5 2
, , 4 8 3
5, 1, 2
3. 6
4
6
4
3 3 5
, , 8 4 6
Number Sense
MR 2.3
3 and 5 .
5. Explain how to compare 8
8
3 5.
I compare the numerators. Since 3 5, 8
Chapter 18 – Lesson 3
Student Book Page
8
page 211
Name
…at home!
P RAC T I C E
Order the fractions from least to greatest.
1, 1, 3
1. 3
8
3
1 3 1
, , 3 8 2
2
5, 5, 3
4. 3
8
2 1 2
, , 6 2 3
Math
Reasoning
8
1 4 2
, , 4 8 3
2, 1, 2
3. 6
4
6
4
5 3 5
, , 8 4 6
Number Sense
MR 2.3
5 and 3 .
2. Explain how to compare 8
8
5 3.
I compare the numerators. Since 5 3, 8
page 142
Home Resource and Homework
8
Chapter 18 Lesson 3
C – © CSL Associates, Inc. All rights reserved.
2
2, 1, 4
2.