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LESSON AT A GLANCE

LESSON AT A GLANCE

LESSON AT A GLANCELESSON AT A GLANCE

PROFESSIONALDEVELOPMENT

Digital Path iTools: Measurement HMH Mega Math

eStudent Edition

Teaching for DepthSome children may not understand that a one dollar bill has a value of 100¢. Do the following activity to deepen children’s understanding of one dollar.

Show children a penny and ask them to name the coin. Ask: What is the value of 1 penny? 1¢ Display a stack of 10 pennies. Ask: What is the value of 10 pennies? 10¢ Display 10 stacks of 10 pennies. Have children count by tens to fi nd the value of 10 stacks of 10 pennies. 100¢ Explain that a one dollar bill has the same value as 10 stacks of 10 pennies, or 100 pennies.

Discuss with children how dollar bills and coins are both useful and why there is a need for both. Point out that it is easier to carry dollar bills in a wallet or pockets than to carry the same money amount in pennies.

Lesson ObjectiveShow one dollar in a variety of ways.

Essential QuestionHow can you show the value of one dollar with coins?

Vocabulary dollar, dollar sign

MaterialsMathBoard

Mathematics Florida StandardTell and write time.MAFS.1.MD.2.a.c Identify and combine values of money in cents up to one dollar working with a single unit of currency. Relate the value of pennies, dimes, and quarters to the dollar (e.g., There are 100 pennies or ten dimes or four quarters in one dollar.) (Students are not expected to understand the decimal notation for combinations of dollars and cents.)

One Dollar

LESSON 9.9D

Problem of the DayNumber of the Day 65¢

Draw dimes and pennies to show 65¢.

Ask children to explain how they counted to fi nd the coins to show that amount.

Vocabulary BuilderMaterials play bills ($1 bills)

Dollar• Distribute play dollar bills to children.

• Discuss with children how a dollar bill and a coin are alike, and how they are different.

• Tell children a dollar has a value of 100¢ or $1.00. Write $1.00 on the board and label the dollar sign. Explain that the dollar sign shows that the number represents money.

• Tell children that the dollar sign and the cent symbol are never used together to write a money amount. Either symbol can be used, but never at the same time.

FL29A Chapter 9

Differentiated Instruction ActivitiesDifferentiated Instruction Activities

Differentiated Instruction Activities

Tier 2Tier 1Reteach

1

2

3

Response to Intervention

EnrichLanguage SupportELL

23¢17¢

36¢

42¢29¢

31¢

Visual / KinestheticPartners

Visual / VerbalSmall Group

Visual / KinestheticSmall Group

Logical / MathematicalWhole Class / Small Group

Materials play coins (pennies, dimes)

• Make 10 stacks of 10 pennies. Count the stacks by tens, pointing to each stack as you count. How many cents are there in all? 100¢ There are 100 cents in one dollar. So, 100 pennies are the same as one dollar.

• How many cents are there in one dime? 10¢ Show a row of 10 dimes. As a group, count by tens to 100. How many cents are there in all? 100¢ So, 10 dimes are the same as one dollar.

• Make a row of 9 dimes and a row of 10 pennies below it. As a group, count by tens for the dimes. How many cents are there in 9 dimes? 90¢ As a group, count by ones for the pennies. How many cents are there in 10 pennies? 10¢

• Then count the two rows of coins as a group. How many cents are there in all? 100¢ So, 9 dimes and 10 pennies are the same as one dollar.

Materials play coins (dimes, quarters)

• Review the values of the quarter, dime, and penny. Point out to children that each of these values is less than one dollar.

• Say: 100 cents is the same as one dollar. Remind children that they can write this money amount as 100¢ or $1.00.

• Show children 10 dimes. Together, count by tens to 100. Since 10 dimes have a total value of 100¢, 10 dimes have a total value of one dollar.

• Show 2 quarters and 5 dimes. Together, count on to fi nd the total value of the coins. Say: 2 quarters and 5 dimes have a total value of one dollar.

Materials Spinner (6-section; see eTeacher Resources), play coins (pennies, dimes, quarters)

• Write the amounts 23¢, 17¢, 36¢, 42¢, 29¢, and 31¢ on the board. Have partners write the amounts in the sections of the spinner.

• Partner A spins the pointer and shows that amount using coins. Then he or she fi nds how many more cents are needed to show one dollar, and shows that amount separately. Partner B checks to make sure the amounts have a sum of one dollar.

• Partners switch roles and repeat the activity.

Strategy: Identify Relationships Materials play coins (dimes, quarters)

• Children understand language by making connections between new information and prior knowledge.

• Remind children that 100¢ is the same as one dollar. Write 100¢, $1.00, and one dollar on the board. Have children write these as well, and discuss the relationship between them.

• Have children count to fi nd the total value of 10 dimes. Then ask them to count different sets of coins that equal 100¢, or one dollar.

See ELL Activity Guide for leveled activities.

Lesson 9.9D FL29B

MATHEMATICALPRACTICES

MATHEMATICAL

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Lesson 9.9D

Chapter 9 FL29

How many pennieshave the same value

as 40¢? Explain.FOR THE TEACHER • In the first box, have children draw 20 pennies and then count to find the total value. In the second box, have children draw four dimes and then count to find the total value.

Draw the coins. Write the total value.

One DollarEssential Question How can you show the value of one dollar with coins?

Name

20¢ ——

40¢ ——

Math Talk: 40 pennies; Possible explanation: One penny has a value of 1¢, so 40 pennies have a value of 40¢.

Check children’s work.

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2. Which addition sentence can you use to check the subtraction? (Lesson 5.4)

11 2 3 5 B8 1 3 5 11 3 1 3 5 6 4 1 7 5 11 4 1 4 5 8 l l l l

3. Count forward. What number is missing? (Lesson 6.1)

98, 99, 100, ____, 102

96 97 101 103l l l l

Spiral Review

1. Which group of coins has a value of $1.00?

Lesson Check

PFL16 sixteen

l l l

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Lesson 9.9D

4. Draw more coins to show $1.00 in all.

Chapter 9 fi fteen PFL15

1.

2.

3.

One Dollar

Circle coins to make $1.00. Cross out the coins you do not use.

Possible answers are given.

Answers may vary. Check children’s drawings for coins that have a total value of 50¢.

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GOOnline

AnimatedMath Models

FL29 Chapter 9

Standards Practice 9.9D

MAFS.1.MD.2.a.c Identify and combine values of money in cents up to one dollar working with a single unit of currency. Relate the value of pennies, dimes, and quarters to the dollar (e.g., There are 100 pennies or ten dimes or four quarters in one dollar.) (Students are not expected to understand the decimal notation for combinations of dollars and cents.)

LESSON 9.9D

1 ENGAGE

Materials play coins (pennies, dimes, quarters)

Access Prior Knowledge Write 83¢ on the board and work with children to show the amount using quarters, dimes, and pennies.• How did you count to fi nd the total value?

Accept all reasonable responses.

Repeat the activity, having children show 57¢ with quarters and pennies.

2 TEACH and TALK

Listen and Draw Read the instructions below. Have children discuss their solutions.

In the fi rst box, draw 20 pennies. Count to fi nd the total value of the coins. Then write the total value.

• Describe how you counted to fi nd the total value. Possible answer: I counted by ones.

• What is the total value of the pennies? 20¢

Read the following instructions to children: In the second box, draw 4 dimes. Count to fi nd the total value of the coins. Then write the total value.

• Describe how you counted to fi nd the total value. Possible answer: I counted by tens.

• What is the total value of the dimes? 40¢

• Without drawing or counting more coins, how many pennies would it take to show 40¢? Explain. 40 pennies; Possible explanation: I know that 40¢ is twice as much as 20¢. Since 20 pennies show 20¢, twice as many pennies would be needed to show 40¢.

Use Math Talk to focus on children’s understanding of showing equivalent amounts with different types of coins.

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Model and Draw

Model and Draw

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Share and Show

Draw the coins to show $1.00. Write the total value.

One dollar has the same value as 100 cents.

FL30

dollar sign

$1.00 5 100¢

Count 100 cents for one dollar.

$1.00 —

$1.00 —

1. quarters

2. dimes

25¢ 25¢ 25¢ 25¢

10¢ 10¢ 10¢ 10¢ 10¢

10¢ 10¢ 10¢ 10¢ 10¢

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© Houghton Mifflin Harcourt Publishing Company

Name

Grade 1RFL8Reteach

Lesson 9.9DReteach

One Dollar

One dollar has the same value as 100 cents.

Count on to 100¢ to show $1.00.

$1.00 ——

25¢, 50¢, 75¢, 100¢ ————

Draw more coins to show $1.00. Write the total value.

1.

$1.00 ——

2.

$1.00 ——

total value

You can write one dollar like this:

$1.00

10¢

25¢

25¢

10¢

Check children’s drawings.

Check children’s drawings.

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90¢

© Houghton Mifflin Harcourt Publishing Company

Name

Grade 1EFL8Enrich

Lesson 9.9DEnrich

1. Ella has these coins.

2. Brad has these coins.

3. Garrett has these coins.

Yo-Yo CoinsHow much more money does each child need to buy the yo-yo? Draw the coins to solve.

Writing and Reasoning Look at Exercise 1. Name a different group of coins that has the same total value as the coins you drew.

Possible coins are shown.

5¢ 1¢ 1¢ 1¢ 1¢

1¢ 1¢ 1¢ 1¢10¢

Coins should have a total value of 9¢.

Coins should have a total value of 14¢.

Coins should have a total value of 25¢.

25¢

Some possible answers: 5 nickels; 1 dime and

3 nickels; 1 dime, 1 nickel, and 10 pennies.

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Quick Check

If

Rt I RR1

2

3

Then

COMMON ERRORS

COMMON ERRORS

MATHEMATICALPRACTICES

Lesson 9.9D FL30

Enrich 9.9DReteach 9.9D

Error Children may write $1.00 incorrectly.

Example In Exercise 1, children write the total value as $1.00¢.Springboard to Learning Have $1.00 = 100¢ written on the board as children work. Point out that the dollar sign and the cent sign are never used at the same time to write a money amount.

a child misses Exercises 1 and 2

Differentiate Instruction with • RtI Tier 1 Activity, p. FL29B

• Reteach 9.9D

Model and DrawRead through the model with children.• How are 100 cents and one dollar alike?

Possible answer: They have the same value.

Point to the dollar sign and identify thesymbol for children.• Describe where the dollar sign is written

in a money amount. Possible answer: just before the dollar amount

3 PRACTICE Share and Show • Guided Practice

Exercises 1–2 connect to the learning model.• For Exercises 1 and 2, will you need more

dimes or more quarters to show one dollar? Explain. more dimes; Possible explanation: The value of a dime is less than the value of a quarter, so I will need more dimes to show one dollar.

Use Exercises 1 and 2 for Quick Check.

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On Your OwnCircle coins to make $1.00.Cross out the coins you do not use.

Chapter 9 • Lesson 9D FL31

3.

4.

5.

6. Draw more coins to show $1.00.

Possible answers are given.

Answers may vary. Children should draw a set of coins with a total value of 55¢.

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MATHEMATICALPRACTICES

FL31 Chapter 9

On Your Own • Independent Practice

If children answer Exercises 1 and 2 correctly, assign Exercises 3–6.

Problem In Exercise 6, children use higher-order thinking skills to determine the value of the given coins and then choose a set of coins to add in order to show $1.00 in all.

Go DeeperUse the following activity to extend children’s understanding of ways to make $1.00.In a math center, place three bags and thefollowing play coins: 6 quarters, 8 dimes, and 20 pennies. Ask children to use the play coins to make three sets of coins that each have a total value of $1.00, and then place each set inside of a bag. Then have another small group check their work.

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MATHEMATICALPRACTICES

MATHEMATICALPRACTICES

Differentiated Centers KitDifferentiated Centers Kit

INDEPENDENT ACTIVITIES

Differentiated Instruction

DifiDi

Model • Reason • Make SenseMATHEMATICALPRACTICES Sense

PROBLEM SOLVING

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FL32

TAKE HOME ACTIVITY • Have your child draw a group of coins to show $1.00.

Use coins to solve.

7. Jackson has 4 pennies and 3 dimes. How much money does Jackson have?

8. Maddox has these coins.

Use quarters, dimes, and pennies. Show the amount in two ways. Draw and label the coins.

He spent 1 quarter. How much money does he have now?

9.

30¢ 35¢ 60¢ 70¢

31¢

10. Test Prep Mary used these coins to buy a folder. What is the total value of these coins?

34¢ __

56¢ __

Some possible answers: 1 quarter and 6 pennies; 3 dimes and 1 penny

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Problem SolvingUnlock the Problem In Exercises 7–8, children apply their understanding of the value of quarters, dimes, and pennies to solve the problems.

Problem In Exercise 9, children use higher order thinking skills to show 31¢ in two ways.

Test Prep CoachTest Prep Coach helps teachers identify common errors that children make.

In Exercise 10, if children selected:• 30¢, they counted all of the coins as dimes.• 35¢, they forgot to count one of the

quarters.• 70¢, they counted the coins incorrectly.

4 SUMMARIZE Essential QuestionHow can you show the value of one dollar with coins? Possible answer: There are many ways to show one dollar with a group of coins, but each way has to have a total value of 100 cents.

Math Journal Draw coins to show one way to make $1.00 using only pennies and quarters.

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Children complete purple Activity Card 15 by showing sets of dimes and their values.

Children read the book and use clues to fi nd hidden coins.

Children practice counting money.

Lesson 9.9D FL32

GamesBank It

ActivitiesDime Store

LiteratureKen’s Coins Animated Math

Models

iTools

HMH Mega Math

Soar to Success Math

e Student Edition

MathematicsFloridaStandards

T e a c h I N G S U P P O R Tfor florida lessons