Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 3 MAP 2 D Trimester 2...

Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 3

MAP2D

Trimester 2Instructional Strategies

Grade 3

Updated 1/10


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



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.



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?


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



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



124

93

62

31

31

61

61

121

121

121

121

91

91

91


How Do You Make a List of Equivalent Fractions?

41 2 3 4 5

Count by 1s

Count by 4s

8

12

16

20


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




decimal?


find one-half of a

dollar

21

= $0.50=

0.50

21

=21

= 0.5= 0.5




decimal?


find three-fourths

of a dollar

43

= $0.75 = 0.75

43

=43

=

0.75


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


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


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


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.

=


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


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


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


$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

Copyright ©, Long Beach Unified School District. All rights reserved. - Grade 3 MAP 2 D Trimester 2...

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