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11/30/09 Compare Decimals #1. LT: I will learn to compare and order decimals. New trimester! Start with lesson #1 again. Today’s Plan: -New Trimester -Lesson -Assignment. Learning Target: -I will learn to compare and order decimals. 11/30/09 Compare Decimals #1.

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slide1

11/30/09 Compare Decimals #1

LT: I will learn to compare and order decimals.

New trimester!

Start with lesson #1 again.

Today’s Plan:

-New Trimester

-Lesson

-Assignment

Learning Target:

-I will learn to compare and order decimals.

slide2

11/30/09 Compare Decimals #1

LT: I will learn to compare and order decimals.

  • Warm Up:
  • Write each decimal as a fraction in lowest terms. (You may use your fraction, decimal, percent wheel.)
  • 0.01 B) 0.1 C) 0.33
  • D) 0.25 E) 0.66 F) 0.4

Today’s Plan:

-New Trimester

-Lesson

-Assignment

Learning Target:

-I will learn to compare and order decimals.

slide3

11/30/09 Compare Decimals #1

Place

Value

1,000

100

10

1

0.1 =

0.01 =

0.001 =

1

1,000

1

100

1

10

Place Value:

·

Place

Thousands

Hundreds

Tens

Ones

Tenths

Thousandths

Hundredths

If 1 meter = 1.00 what would .5 be? .01? .06? .56? .001?

Today’s Plan:

-New Trimester

-Lesson

-Assignment

Learning Target:

-I will learn to compare and order decimals.

slide4

Comparing and Ordering Rational Numbers

3-10

Course 2

To compare decimals, line up the decimal points and compare digits from left to right until you find the place where the digits are different.

slide5

11/30/09 Compare Decimals #1

Today’s Plan:

-New Trimester

-Lesson

-Assignment

Learning Target:

-I will learn to compare and order decimals.

slide6

Comparing and Ordering Rational Numbers

3-10

Course 2

Additional Example 2: Comparing Decimals

Compare the decimals. Write < or >.

0.427

0.425

Line up the decimal points.

0.427

7

The tenths and hundredths are

the same.

0.425

5

Compare the thousandths:

7 > 5.

0.427 > 0.425

slide7

Comparing and Ordering Rational Numbers

3-10

Course 2

Try This: Example 2

Compare the decimals. Write < or >.

0.535

0.538

Line up the decimal points.

0.535

5

The tenths and hundredths are

the same.

0.538

8

Compare the thousandths:

5 < 8.

0.535 < 0.538

slide8

Comparing and Ordering Rational Numbers

3-10

0 0.2 0.4 0.6 0.8 1

Course 2

Additional Example 3: Ordering Fractions and Decimals

Order the numbers from least to greatest.

4

5

,

0.93, and 0.9

Write as decimals with the same number of places.

4

5

= 0.80

0.93 = 0.93

0.9 = 0.90

Graph the numbers on a number line.

0.93

slide9

Comparing and Ordering Rational Numbers

3-10

0 0.2 0.4 0.6 0.8 1

Course 2

Additional Example 3 Continued

Order the numbers from least to greatest.

4

5

,

0.93, and 0.9

The values on a number line increase as we

move from left to right.

0.80 < 0.90 < 0.93

Place the decimals in order.

4

5

, 0.9, 0.93

0.93

slide10

Comparing and Ordering Rational Numbers

3-10

0 0.2 0.4 0.6 0.8 1

Course 2

Try This: Example 3

Order the numbers from least to greatest.

3

5

,

0.84, and 0.7

Write as decimals with the same number of places.

3

5

= 0.60

0.84 = 0.84

0.7 = 0.70

Graph the numbers on a number line.

0.84

slide11

Comparing and Ordering Rational Numbers

3-10

0 0.2 0.4 0.6 0.8 1

Course 2

Try This: Example 3 Continued

Order the numbers from least to greatest.

3

5

,

0.84, and 0.7

The values on a number line increase as we

move from left to right.

0.60 < 0.70 < 0.84

Place the decimals in order.

3

5

, 0.7, 0.84

0.84

slide12

11/30/09 Compare Decimals #1

Page 176 #5-8, 20-25

Today’s Plan:

-New Trimester

-Lesson

-Assignment

Learning Target:

-I will learn to compare and order decimals.