Post on 01-Apr-2015
Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 3
MAP2D
Trimester 2Instructional Strategies
Grade 3
Updated 1/10
Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 3
Use Fraction Strips to Find Equivalent Fractions
11
21
31
31
31
41
41
41
41
61
61
61
61
61
61
81
81
81
81
81
81
81
121
121
81
121
121
121
121
121
121
121
121
121
121
Equivalent means “the same”.
Fractions are equivalent if they name the same amount.
21
42
21
63
42
21
84
63
42
21
126
84
63
42
21
* Slide Animates
Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 3
Use Fraction Strips to Find Equivalent Fractions
11
21
31
31
31
41
41
41
41
61
61
61
61
61
61
81
81
81
81
81
81
81
121
121
81
121
121
121
121
121
121
121
121
121
121
Equivalent means “the same”.
Fractions are equivalent if they name the same amount.
21
42
21
63
42
21
84
63
42
21
126
84
63
42
21
Slide for Printing
Fractions equivalent to one half are outlined in black.
Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 3
Use Fraction Strips to Find Equivalent Fractions
11
21
31
31
31
41
41
41
41
61
61
61
61
61
61
81
81
81
81
81
81
81
121
121
81
121
121
121
121
121
121
121
121
121
121
Find a fraction equivalent to .
21
32
1. Find . 32
2. Look up or down to find a set of fractions equal to .
32
3. Count the pieces.
4. Write the equivalent fractions.
64
32
Do you see another fraction equal to two-thirds?
Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 3
What Patterns Do You See in Equivalent Fractions?
126
84
63
42
21
41
41
61
61
61
81
81
81
121
121
81
121
121
121
121
21
Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 3
What Patterns Do You See in Equivalent Fractions?
126
84
63
42
21
41
41
61
61
61
81
81
81
121
121
81
121
121
121
121
21
Count by 1s
Count by 2s
12
Double
Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 3
What Patterns Do You See in Equivalent Fractions?
124
93
62
31
31
61
61
121
121
121
121
91
91
91
Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 3
How Do You Make a List of Equivalent Fractions?
41 2 3 4 5
Count by 1s
Count by 4s
8
12
16
20
Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 3
Fractions and Decimals Represent the Same Concept
What is represented as a
decimal?
Think of how you would
find one-fourth of
a dollar
41
= $0.25 = 0.25
41
=41
=
0.25
Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 3
Fractions and Decimals Represent the Same Concept
What is represented as a
decimal?
Think of how you would
find one-half of a
dollar
21
= $0.50=
0.50
21
=21
= 0.5= 0.5
Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 3
Fractions and Decimals Represent the Same Concept
What is represented as a
decimal?
Think of how you would
find three-fourths
of a dollar
43
= $0.75 = 0.75
43
=43
=
0.75
Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 3
Fractional Part of a GroupWhat is 1 of 16? 4
161
3. Divide
14
164
of 16 is14
4
1. Rewrite as an equation
↓
x
Rewrite 16as a
Fraction
=
2. Multiply numerator and denominator 1
4x 16
1=
164
= 4
Chapter 18Lesson 2
Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 3
Compare FractionsCompare. Write >,<, =
28
131. Cross Multiply
28
13
x x6 82. Circle your product.
3. Compare (6 is less than 8)
28
13
4. is less than 28
13<
Chapter 18Lesson 3 & 4
Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 3
Add and Subtract Fractions
Look at the denominator. If the denominators are the same, the denominator stays
the same. Hint: It is like a reflection in a mirror.
Add the numerators.
25
+ 15
= _
53
89
- 29
=
Look at the denominator. If the denominators are the same, the denominator stays
the same. Hint: It is like a reflection in a mirror.
9
____________________________________________________________________________________________
_6
Subtract the numerators.Chapter 19Lesson 1,3
Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 3
Convert Fractions to Decimals
1. Look at the denominator. Underline the zeros.
Chapter 20 Lesson 2
Write this fraction as a decimal.
52100_ _
52_ _.
2. Write the numerator. Starting at the right of the numerator, move to the left underlining the number of spaces that match the number of zeros underlined.3. Fill in any empty spaces with zeros and add a decimal point.
=
Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 3
Convert Fractions to DecimalsWrite this fraction as a decimal.
8100___
1. Look at the denominator. Underline the zeros.
--
2. Write the numerator. Starting at the right of the numerator, move to the left underlining the number of spaces that match the number of zeros underlined.
= 8--
3. Fill in any empty spaces with zeros and add a decimal point.
0.
Chapter 20 Lesson 2
Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 3
Convert Decimals to Fractions
1. Underline the digits to the right of the decimal.
Write this decimal as a fraction.09
2. Write the denominator by writing the number of zeros to match the number of digits that were underlined.
3. Write the decimal number, without the decimal, as the numerator.
__
____ 001
9
Chapter 20 Lesson 2
Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 3
Let’s Learn How to Do Long Division
5. Check:
3246
324 ÷ 6 =
1. Rewrite the division equation
2. Ask yourself,” Six times what is equal to or less than 3?” 6 x 0 = 0
Hint: Multiply – Subtract – Bring down
3. Ask yourself,”Six times what is equal to or less than 32?”6 x 5 = 30 6 x 6= 36 too big
4. Ask yourself,”Six times what is equal to or less than 24?”6 x 4 = 24
0x
0- _32
5
30- __24
4
24-0
54 6x
324Chapter 17Lesson 1
Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 3
$Let’s Divide Money!
PROBLEM: $9.80 4 =
REWRITE 4 into $9.80
WRITE the dollar sign and decimal in the quotient
DIVIDE
80.9$42
- 81 8
- 1 620
- 2 00
45
Ch. 17Lesson 6