6 th grade number sense 2.4 (3q) determine the least common multiple and the greatest common divisor...
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6th Grade Number Sense 2.4 (3Q)Determine the least common multiple and the greatest common divisor of whole
numbers; use them to solve problems with fractions (e.g., to find a common denominator to add two fractions or to find the reduced form of a fraction).
Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 • www.dataworks-ed.com ©2012 All rights reserved. Comments? feedback@dataworks-ed.com
Learning Objective Name ___________________________
Today, we will reduce fractions.
CFUWhat are we going to do today?
Activate (or provide) Prior Knowledge
CFU Students, you already know how to find the GCF of two numbers by listing their factors. Today, we will reduce fractions by finding the GCF of the numerator and denominator.
A factor is a number that divides a given number evenly.The greatest common factor (GCF) of two numbers is thelargest number that divides both numbers evenly.
List the factors of the following numbers.
A. The factors of 18
1
B. The factors of 12
, 2 , 3, 6, 9, 18 1, 2 , 3, 4, 6, 12
C. What is the GCF of 12 and 18?
6The GCF of 12 and 18 is ________.
1, 2, 3, 6
Factors of 6
6th Grade Number Sense 2.4 (3Q)Determine the least common multiple and the greatest common divisor of whole
numbers; use them to solve problems with fractions (e.g., to find a common denominator to add two fractions or to find the reduced form of a fraction).
Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 • www.dataworks-ed.com ©2012 All rights reserved. Comments? feedback@dataworks-ed.com
Concept Development
Example: Reduce using the greatest common factor (GCF): 1218
The reduced form of a fraction is when the numerator and denominator have no common1 factor except 1.• A fraction in reduced form is also referred2 to as in simplest form or lowest terms.
CFUUse the list of factors to determine which fraction is in reduced form? How do you know? Why is the other not in reduced form?
What number will we need to divide by to reduce the fraction (A) above? How do you know?
Factors of 12 = 1, 2, 3, 4, 6, and 12
Factors of 18 = 1, 2, 3, 6, 9, and 18
12 6 2 =
18 6 3
To reduce a fraction means to change it into reduced form.• To reduce a fraction, divide the numerator and denominator by the GCF.
GCF = 6
1 same 2 called
1218
23
1, 2
1, 3
23
Reduced Fraction
No common factor except 1
7
21B 9
25A 1, 7
1, 3, 7, 21
1, 3, 9
1, 5, 25
B 3 A 7
FlashcardsReduced Form
1, 2, 3, 4, 6, 121, 2, 3, 6, 9, 18
1218
NOT a Reduced Fraction
1, 2, 3 and 6 are common factors
6th Grade Number Sense 2.4 (3Q)Determine the least common multiple and the greatest common divisor of whole
numbers; use them to solve problems with fractions (e.g., to find a common denominator to add two fractions or to find the reduced form of a fraction).
Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 • www.dataworks-ed.com ©2012 All rights reserved. Comments? feedback@dataworks-ed.com
1.
Factors of 7:
_______________________
Factors of 21: ______________________
GCF:_______
2.
Factors of 5:
_______________________
Factors of 20: ______________________
GCF:_______
3.
Factors of 9:
_______________________
Factors of 12: ______________________
GCF:_______
4.
Factors of 12: ______________________
Factors of 15: ______________________
GCF:_______
Skill Development/Guided Practice
CFU(#2) How did I/you identify the GCF? (#3) How did I/you reduce the fraction?(#4) How did I/you interpret the reduced fraction?
7
215
20
9
12
1
1
7
7=
7
Step #1: Find the factors of the numerator and denominator.Step #2: Identify3 the GCF and write it on the line. (circle)Step #3: Reduce the fraction by dividing the numerator and denominator by the GCF. (circle)Step #4: Interpret4 the reduced fraction. “The reduced form of ____ is _____.” 3 find 4 explain
1
3
Reduce fractions.
, 7
, 3 , 7, 21
1
1
5
5=
5
1
4
, 5
, 2 , 4, 5, 10, 20
1
1
3
3=
3
3
4
, 3
, 2 , 3, 4, 6, 12
, 9
The reduced form of a fraction is when the numerator and denominator have no common factor except 1.To reduce a fraction means to change it into reduced form.
12
15
1 , 2 , 3, 4, 6, 12
1, 3 , 5, 15
3
3=
3
4
5
NOT a Reduced Fraction
1, 2, 3, and 6 are commonfactor of 12 and 18
1218
23
Reduced Fraction
No common factor except 1
6th Grade Number Sense 2.4 (3Q)Determine the least common multiple and the greatest common divisor of whole
numbers; use them to solve problems with fractions (e.g., to find a common denominator to add two fractions or to find the reduced form of a fraction).
Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 • www.dataworks-ed.com ©2012 All rights reserved. Comments? feedback@dataworks-ed.com
18
42
24
40
5. Factors of 18: _______________________
Factors of 42: _______________________
GCF:_______
6. Factors of 24: _______________________
Factors of 40: _______________________
GCF:_______
1 , 2 , 3, 6, 9, 18
1 , 2 , 3, 6, 7, 14, 21, 42
6
6=
6
3
7
1 , 2 , 3, 4, 6, 8
1 , 2 , 4, 5, 8, 10, 20, 40
8
8=
8
3
5
, 12, 24
Skill Development/Guided Practice (continued)
The reduced form of a fraction is when the numerator and denominator have no common factor except 1.To reduce a fraction means to change it into reduced form.
CFU(#2) How did I/you identify the GCF? (#3) How did I/you reduce the fraction?(#4) How did I/you interpret the reduced fraction?
Step #1: Find the factors of the numerator and denominator.Step #2: Identify the GCF and write it on the line. (circle)Step #3: Reduce the fraction by dividing the numerator and denominator by the GCF. (circle)Step #4: Interpret the reduced fraction. “The reduced form of ____ is _____.”
Reduce fractions. 2
3
Reduced Fraction
No common factor except 1
NOT a Reduced Fraction
1, 2, 3, and 6 are commonfactor of 12 and 18
1218
6th Grade Number Sense 2.4 (3Q)Determine the least common multiple and the greatest common divisor of whole
numbers; use them to solve problems with fractions (e.g., to find a common denominator to add two fractions or to find the reduced form of a fraction).
Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 • www.dataworks-ed.com ©2012 All rights reserved. Comments? feedback@dataworks-ed.com
The reduced form of a fraction is when the numerator and denominator have no common factor except 1.To reduce a fraction means to change it into reduced form.
CFUDoes anyone else have another reason why it is relevant to reduce fractions? (pair-share) Why is it relevant to reduce fractions? You may give me my reason or one of your own. Which reason is more relevant to you? Why?
1. Reducing fractions will make calculations easier.
Relevance
2. Reducing fractions will help you do well on tests.
A pizza is cut into 12 equal pieces. John and his friend ate 6 slices. How much of the pizza did they eat?
6 6 1 =
12 6 2
They ate half of the pizza.
6th Grade Number Sense 2.4 (3Q)Determine the least common multiple and the greatest common divisor of whole
numbers; use them to solve problems with fractions (e.g., to find a common denominator to add two fractions or to find the reduced form of a fraction).
Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 • www.dataworks-ed.com ©2012 All rights reserved. Comments? feedback@dataworks-ed.com
Skill Closure
1. Factors of 3: _______________________
Factors of 15: _______________________
GCF:_______
2. Factors of 14: _______________________
Factors of 18: _______________________
GCF:_______
1, 3
1, 3 , 5, 15
3
3=
3
1
5
1 , 2 , 7, 14
1 , 2 , 3, 6, 9, 18
2
2=
2
7
9
3
15
14
18
The reduced form of a fraction is when the numerator and denominator have no common factor except 1.To reduce a fraction means to change it into reduced form.
What did you learn today about reducing fractions?Day 1 _________________________________________________________________________________________________________________________________________________________________________________________________________
Day 2 _________________________________________________________________________________________________________________________________________________________________________________________________________
Step #1: Find the factors of the numerator and denominator.Step #2: Identify the GCF and write it on the line. (circle)Step #3: Reduce the fraction by dividing the numerator and denominator by the GCF. (circle)Step #4: Interpret the reduced fraction. “The reduced form of ____ is _____.”
Reduce fractions.
Constructed Response Closure
Summary Closure
Alicia reduced the fraction to . Explain why her answer is not fully reduced.
______________________________________________________________________________________________________
12
24
2
4
23
Reduced Fraction
No common factor except 1
NOT a Reduced Fraction
1, 2, 3, and 6 are commonfactor of 12 and 18
1218
6th Grade Number Sense 2.4 (3Q)Determine the least common multiple and the greatest common divisor of whole
numbers; use them to solve problems with fractions (e.g., to find a common denominator to add two fractions or to find the reduced form of a fraction).
Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 • www.dataworks-ed.com ©2012 All rights reserved. Comments? feedback@dataworks-ed.com
Independent Practice Name ________________________________
1
1
11
11=
11
1
3
, 11
, 3 , 11, 33
1
1
5
5=
5
1
7
, 5
, 5 , 7, 35
1
1
3
3=
3
5
8
, 3
, 2 , 3, 4, 6, 8
, 5
11
335
35
15
24
, 15
, 12, 24
1.
Factors of 11:
_______________________
Factors of 33: ______________________
GCF:_______
2.
Factors of 5:
_______________________
Factors of 35: ______________________
GCF:_______
3.
Factors of 15:
_______________________
Factors of 24: ______________________
GCF:_______
4.
Factors of 27:
_______________________
Factors of 30: ______________________
GCF:_______
5.
Factors of 14:
_______________________
Factors of 48: ______________________
GCF:_______
6.
Factors of 12:
_______________________
Factors of 54: ______________________
GCF:_______
1 , 3, 9, 27
1, 2 , 3, 5
3
3=
3
9
1027
30, 6 , 10, 15, 30
1 , 2 , 7, 14
1 , 2 , 3, 4, 6, 8 , 12, 16
2
2=
2
7
24
14
48, 24,48
1 , 2 , 3, 4, 6, 12
1 , 2 , 3, 6, 9, 18, 27, 54
6
6=
6
2
912
54
The reduced form of a fraction is when the numerator and denominator have no common factor except 1.To reduce a fraction means to change it into reduced form.
Step #1: Find the factors of the numerator and denominator.Step #2: Identify the GCF and write it on the line. (circle)Step #3: Reduce the fraction by dividing the numerator and denominator by the GCF. (circle)Step #4: Interpret the reduced fraction. “The reduced form of ____ is _____.”
Reduce fractions. 23
Reduced Fraction
No common factor except 1
NOT a Reduced Fraction
1, 2, 3, and 6 are commonfactor of 12 and 18
1218
6th Grade Number Sense 2.4 (3Q)Determine the least common multiple and the greatest common divisor of whole
numbers; use them to solve problems with fractions (e.g., to find a common denominator to add two fractions or to find the reduced form of a fraction).
Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 • www.dataworks-ed.com ©2012 All rights reserved. Comments? feedback@dataworks-ed.com
1.
Factors of 14:
_______________________
Factors of 42: ______________________
GCF:_______
2.
Factors of 22:
_______________________
Factors of 33: ______________________
GCF:_______
3.
Factors of 15:
_______________________
Factors of 75: ______________________
GCF:_______
4.
Factors of 12:
_______________________
Factors of 60: ______________________
GCF:_______
5.
Factors of 16:
_______________________
Factors of 56: ______________________
GCF:_______
6.
Factors of 40:
_______________________
Factors of 55: ______________________
GCF:_______
14
4222
33
15
75
1, 2, 7, 14
1, 2, 3, 6, 7, 14, 21, 42
14
14 14 1=
42 14 3
1, 2, 11, 22
1, 3, 11, 33
11
22 11 2=
33 11 3
1, 3, 5, 15
1, 3, 5, 15, 25, 75
15
15 15 1=
75 15 5
12
60
1, 12, 2, 6, 3, 4
1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60 12
12 12 1
=60 12 5
16
56
1, 2, 4, 8, 16
1, 2, 4, 7, 8, 14, 28, 56
8
16 8 2=
56 8 7
40
55
1, 2, 3, 4, 5, 8, 10, 20, 40
1, 5, 11, 55
5
40 5 8=
55 5 11
Periodic Review 1 Name ________________________________The reduced form of a fraction is when the numerator and denominator have no common factor except 1.To reduce a fraction means to change it into reduced form.
Step #1: Find the factors of the numerator and denominator.Step #2: Identify the GCF and write it on the line. (circle)Step #3: Reduce the fraction by dividing the numerator and denominator by the GCF. (circle)Step #4: Interpret the reduced fraction. “The reduced form of ____ is _____.”
Reduce fractions. 23
Reduced Fraction
No common factor except 1
NOT a Reduced Fraction
1, 2, 3, and 6 are commonfactor of 12 and 18
1218
6th Grade Number Sense 2.4 (3Q)Determine the least common multiple and the greatest common divisor of whole
numbers; use them to solve problems with fractions (e.g., to find a common denominator to add two fractions or to find the reduced form of a fraction).
Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 • www.dataworks-ed.com ©2012 All rights reserved. Comments? feedback@dataworks-ed.com
1.
Factors of 8:
_______________________
Factors of 32: ______________________
GCF:_______
2.
Factors of 16:
_______________________
Factors of 36: ______________________
GCF:_______
3.
Factors of 64:
_______________________
Factors of 88: ______________________
GCF:_______
4.
Factors of 36:
_______________________
Factors of 81: ______________________
GCF:_______
5.
Factors of 28:
_______________________
Factors of 42: ______________________
GCF:_______
6.
Factors of 22:
_______________________
Factors of 40: ______________________
GCF:_______
8
3216
36
64
88
1, 2, 4, 8
1, 2, 4, 8, 16, 32
8
8 8 1=
32 8 4
1, 2, 4, 8, 16
1, 2, 3, 4, 6, 9, 12, 18, 36
4
16 4 4=
36 4 9
1, 2, 4, 8, 16, 32, 64
1, 2, 4, 8, 11, 22, 44, 88
8
64 8 8=
88 8 11
36
81
1, 2, 3, 4, 6, 9, 12, 18, 36
1, 3, 9, 27, 81
9
36 9 4=
81 9 9
28
42
1, 2, 4, 7, 14, 28
1, 2, 3, 6, 7, 14, 21, 42
14
28 14 2=
42 14 3
22
40
1, 2, 11, 22
1, 2, 4, 5, 8, 10, 20, 40
2
22 2 11=
40 2 20
Periodic Review 2 Name ________________________________The reduced form of a fraction is when the numerator and denominator have no common factor except 1.To reduce a fraction means to change it into reduced form.
Step #1: Find the factors of the numerator and denominator.Step #2: Identify the GCF and write it on the line. (circle)Step #3: Reduce the fraction by dividing the numerator and denominator by the GCF. (circle)Step #4: Interpret the reduced fraction. “The reduced form of ____ is _____.”
Reduce fractions. 23
Reduced Fraction
No common factor except 1
NOT a Reduced Fraction
1, 2, 3, and 6 are commonfactor of 12 and 18
1218
6th Grade Number Sense 2.4 (3Q)Determine the least common multiple and the greatest common divisor of whole
numbers; use them to solve problems with fractions (e.g., to find a common denominator to add two fractions or to find the reduced form of a fraction).
Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 • www.dataworks-ed.com ©2012 All rights reserved. Comments? feedback@dataworks-ed.com
1.
Factors of 36:
_______________________
Factors of 63: ______________________
GCF:_______
2.
Factors of 20:
_______________________
Factors of 85: ______________________
GCF:_______
3.
Factors of 28:
_______________________
Factors of 70: ______________________
GCF:_______
4.
Factors of 30:
_______________________
Factors of 50: ______________________
GCF:_______
5.
Factors of 18:
_______________________
Factors of 72: ______________________
GCF:_______
6.
Factors of 27:
_______________________
Factors of 45: ______________________
GCF:_______
1, 2, 4, 7, 14, 28
36
63
20
85
28
70
1, 2, 3, 4, 6, 9, 12, 18, 36
1, 3, 7, 9, 21, 63
9
36 9 4=
63 9 7
1, 2, 4, 5, 10, 20
1, 5, 17, 85
5
20 5 4=
85 5 17
1, 2, 5, 7, 10, 14, 35, 70
14
28 14 2=
70 14 5
30
50
1, 2, 3, 5, 6, 10, 15, 30
1, 2, 5, 25, 10, 50
10
30 10 3=
50 10 5
18
72
1, 2, 3, 6, 9, 18
1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72
18
18 18 1=
72 18 4
27
45
1, 3, 9, 27
1, 3, 5, 9, 15, 45
9
27 9 3=
45 9 5
Periodic Review 3 Name ________________________________The reduced form of a fraction is when the numerator and denominator have no common factor except 1.To reduce a fraction means to change it into reduced form.
Step #1: Find the factors of the numerator and denominator.Step #2: Identify the GCF and write it on the line. (circle)Step #3: Reduce the fraction by dividing the numerator and denominator by the GCF. (circle)Step #4: Interpret the reduced fraction. “The reduced form of ____ is _____.”
Reduce fractions. 23
Reduced Fraction
No common factor except 1
NOT a Reduced Fraction
1, 2, 3, and 6 are commonfactor of 12 and 18
1218
6th Grade Number Sense 2.4 (3Q)Determine the least common multiple and the greatest common divisor of whole
numbers; use them to solve problems with fractions (e.g., to find a common denominator to add two fractions or to find the reduced form of a fraction).
Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 • www.dataworks-ed.com ©2012 All rights reserved. Comments? feedback@dataworks-ed.com
Flashcard (Reduced Form)
Teacherwith CFU
The reduced form of a fraction is when the numerator and denominator have no common factor except 1.To reduce a fraction means to change it into reduced form.
Is the fraction in reduced form?
[ How did I know if the fraction was in reduced form? ]
1
8
Flashcard (Reduced Form)
Yes
6th Grade Number Sense 2.4 (3Q)Determine the least common multiple and the greatest common divisor of whole
numbers; use them to solve problems with fractions (e.g., to find a common denominator to add two fractions or to find the reduced form of a fraction).
Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 • www.dataworks-ed.com ©2012 All rights reserved. Comments? feedback@dataworks-ed.com
Studentswith CFU
The reduced form of a fraction is when the numerator and denominator have no common factor except 1.To reduce a fraction means to change it into reduced form.
[ How did you know if the fraction was in reduced form? ]
3
10
Flashcard (Reduced Form)
Flashcard (Reduced Form)
Is the fraction in reduced form?
Yes
6th Grade Number Sense 2.4 (3Q)Determine the least common multiple and the greatest common divisor of whole
numbers; use them to solve problems with fractions (e.g., to find a common denominator to add two fractions or to find the reduced form of a fraction).
Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 • www.dataworks-ed.com ©2012 All rights reserved. Comments? feedback@dataworks-ed.com
Teacherwith CFU
The reduced form of a fraction is when the numerator and denominator have no common factor except 1.To reduce a fraction means to change it into reduced form.
[ How did I know if the number was in reduced form? ]
9
12
Flashcard (Reduced Form)
Flashcard (Reduced Form)
Is the fraction in reduced form?
No
6th Grade Number Sense 2.4 (3Q)Determine the least common multiple and the greatest common divisor of whole
numbers; use them to solve problems with fractions (e.g., to find a common denominator to add two fractions or to find the reduced form of a fraction).
Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 • www.dataworks-ed.com ©2012 All rights reserved. Comments? feedback@dataworks-ed.com
Studentswith CFU
The reduced form of a fraction is when the numerator and denominator have no common factor except 1.To reduce a fraction means to change it into reduced form.
2
10
Flashcard (Reduced Form)
Flashcard (Reduced Form)
Is the fraction in reduced form?
[ How did you know if the fraction was in reduced form? ]
No
6th Grade Number Sense 2.4 (3Q)Determine the least common multiple and the greatest common divisor of whole
numbers; use them to solve problems with fractions (e.g., to find a common denominator to add two fractions or to find the reduced form of a fraction).
Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 • www.dataworks-ed.com ©2012 All rights reserved. Comments? feedback@dataworks-ed.com
The reduced form of a fraction is when the numerator and denominator have no common factor except 1.To reduce a fraction means to change it into reduced form.
4
7
Flashcard (Reduced Form)
Flashcard (Reduced Form)
Is the fraction in reduced form?
Yes
Students
6th Grade Number Sense 2.4 (3Q)Determine the least common multiple and the greatest common divisor of whole
numbers; use them to solve problems with fractions (e.g., to find a common denominator to add two fractions or to find the reduced form of a fraction).
Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 • www.dataworks-ed.com ©2012 All rights reserved. Comments? feedback@dataworks-ed.com
The reduced form of a fraction is when the numerator and denominator have no common factor except 1.To reduce a fraction means to change it into reduced form.
7
21
Flashcard (Reduced Form)
Flashcard (Reduced Form)
Is the fraction in reduced form?
No
Students
6th Grade Number Sense 2.4 (3Q)Determine the least common multiple and the greatest common divisor of whole
numbers; use them to solve problems with fractions (e.g., to find a common denominator to add two fractions or to find the reduced form of a fraction).
Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 • www.dataworks-ed.com ©2012 All rights reserved. Comments? feedback@dataworks-ed.com
The reduced form of a fraction is when the numerator and denominator have no common factor except 1.To reduce a fraction means to change it into reduced form.
10
30
Flashcard (Reduced Form)
Flashcard (Reduced Form)
Is the fraction in reduced form?
No
Students
6th Grade Number Sense 2.4 (3Q)Determine the least common multiple and the greatest common divisor of whole
numbers; use them to solve problems with fractions (e.g., to find a common denominator to add two fractions or to find the reduced form of a fraction).
Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 • www.dataworks-ed.com ©2012 All rights reserved. Comments? feedback@dataworks-ed.com
Students
The reduced form of a fraction is when the numerator and denominator have no common factor except 1.To reduce a fraction means to change it into reduced form.
9
11
Flashcard (Reduced Form)
Flashcard (Reduced Form)
Is the fraction in reduced form?
Yes
6th Grade Number Sense 2.4 (3Q)Determine the least common multiple and the greatest common divisor of whole
numbers; use them to solve problems with fractions (e.g., to find a common denominator to add two fractions or to find the reduced form of a fraction).
Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 • www.dataworks-ed.com ©2012 All rights reserved. Comments? feedback@dataworks-ed.com
Students
The reduced form of a fraction is when the numerator and denominator have no common factor except 1.To reduce a fraction means to change it into reduced form.
5
9
Flashcard (Reduced Form)
Flashcard (Reduced Form)
Is the fraction in reduced form?
Yes
6th Grade Number Sense 2.4 (3Q)Determine the least common multiple and the greatest common divisor of whole
numbers; use them to solve problems with fractions (e.g., to find a common denominator to add two fractions or to find the reduced form of a fraction).
Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 • www.dataworks-ed.com ©2012 All rights reserved. Comments? feedback@dataworks-ed.com
Studentswith CFU
Return to Concept Development
The reduced form of a fraction is when the numerator and denominator have no common factor except 1.To reduce a fraction means to change it into reduced form.
8
12
Flashcard (Reduced Form)
Flashcard (Reduced Form)
Is the fraction in reduced form?
No[ How did you know if the fraction was in reduced form? ]
6th Grade Number Sense 2.4 (3Q)Determine the least common multiple and the greatest common divisor of whole
numbers; use them to solve problems with fractions (e.g., to find a common denominator to add two fractions or to find the reduced form of a fraction).
Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 • www.dataworks-ed.com ©2012 All rights reserved. Comments? feedback@dataworks-ed.com
Learning Objective : Today, we will reduce fractions.
Cognitive Strategies Teaching Strategies
Elaboration Demonstration
Targeted vocabulary: reduced form, common, referred, identify, interpret
Language Strategies
Vocabulary Words
Academic common, referred, identify, interpret
Content reduced form
Support
VocabularyStrategy
Multiple-Meaning
Synonym common, referred, identify, interpret
Definition reduced form
Homophone
Internal Context Clue
Listen, Speak Similar Sounds
ReadTracked Reading
Decoding Rules
Write Writing
Content Access Strategies
Comprehensible Input Cognates
Contextual Clues
Graphic Organizer
Contextualized Definitions
Pictures
EDI – Cognitive, Teaching and English Learners Strategies
6th Grade Number Sense 2.4 (3Q)Determine the least common multiple and the greatest common divisor of whole
numbers; use them to solve problems with fractions (e.g., to find a common denominator to add two fractions or to find the reduced form of a fraction).
Lesson to be used by EDI-trained teachers only.
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