ms. j. helton’s math lesson plans

88
Ms. J. Helton’s Math Lesson Plans

Upload: tori

Post on 21-Mar-2016

72 views

Category:

Documents


0 download

DESCRIPTION

Ms. J. Helton’s Math Lesson Plans. BLOWING UP EXPANDED FORM. cc.2.NBT.3. Math Common Core Standard:. 2.NBT.3. Read and write numbers to 1000 using base-ten numerals, number names, and expanded. OBJECTIVES:. I can tell the difference between standard form and expanded form. - PowerPoint PPT Presentation

TRANSCRIPT

Ms. J. Helton’s Math Lesson Plans

BLOWING UP EXPANDED FORMcc.2.NBT.3

Math Common Core Standard:

2.NBT.3. Read and write numbers to 1000 using base-ten numerals, number names, and expanded.

OBJECTIVES:

I can tell the difference between standard form and expanded form. I will write numbers in expanded form.

Essential Questions:

How do you describe 2 digit number as tens and ones?

What are different ways to write a 2-digit number?

STANDARDS FOR MATHEMATICAL PRACTICE Make sense of problems and persevere in solving them.

Reason abstractly and quantitatively Construct viable arguments and critique the reasoning of others.

Model with mathematics. Use appropriate tools strategically. Look for and make use of structure. Look for and express regularity in repeated reasoning.

Manners Matter Show Respect Show Responsibility Show Self-Control HAVE FUN

ESSENTIAL QUESTIONS

Why should we understand place value? What is the difference between place and value? How does place value help us solve problems? How does the value of a digit change when its position in a number changes?

What does “0” represent in a number?

I can…. I can read and write numbers to 1000. I can show numbers to 1000 using base-ten numerals. I can read and write number names to 1000. I can show numbers to 1000 in expanded form.

CC.2.NBT.3 Read and write numbers to 1000 using base-ten numerals, number names, and expanded form.

Materials: Smart Board Textbooks PowerPoint Hand-outs Teacher-made-materials, Anchor Charts Quizzes/tests Exit Slips

Problem of the Day:

Let’s Have a Quick Review:

Place Value Review

7 4 9Ones

TensHundreds

What is the value? 7 in 476

9 in 981

4 in 14

6 in 6211

Warm up

Complete the following pattern:

10, 15, 20, 25, ___

12, 24, 36, 48, ____

Do Now:

What is the value of the 3 in each number?

a. 253=------------------------b. 6,347=--------------------c. 365= _____________

I Do/Say:

Good morning students! Today we are going t o learn to compose and decompose numbers as you write 2-digit numbers in different forms.

One of these forms is expanded form, the sum of the value of the tens digit and the value of the one digit.

For example: 58 as 50 + 8.

Teacher Says:

Remember boys and girls we are going to learn how to read and write numbers in standard form and expanded form

Can you tell me what you notice about the first pattern?

29 = 20 + 9

How can we write numbers in different ways?

1. Standard Notation453

2. Word Notationfour hundred fifty three

3. Expanded Notation400 + 50 + 3

I Do:

Scholars, last week, we totally rocked our goals! You guys are masters at comparing numbers. Remember we will come back to the comparing numbers.

Today though, we are going to learn how to read and write numbers in expanded form.

STANDARD FROM

The common or usual way of writing a number using digits.

32624

55

EXPANDED FORM

A way to write numbers that shows the place value for each digit.

3 tens + 2 ones6 ones2 tens + 4 ones

5 tens + 5 ones

STANDARD FROM EXPANDED FORM

15 ___ tens + ___ ones ?

1 5

STANDARD FROM EXPANDED FORM

24 ___ tens + ___ ones ?

2 4

The Purpose:

Students writing number in expanded form will be very helpful and useful when you are adding and subtracting several digit numbers.

Engage: T. will access students’ prior knowledge:

I have 5 tens blocks

Teach and Talk:

Boys we have a problem !

Myleik used 38 stickers to decorate his book of photos. How can you model with blocks?

My number is 38. Turn and talk to your partner to create the blocks to model the number of stickers Myleik used?

Turn, Talk, and Model:

Students use the blocks to model the number of stickers Myleik used to decorate a book of photos.

Turn, Talk, and Model:

How many tens blocks and how many ones blocks did you use? Explain!

How does the place of each digit show the value of the digits in the number 38?

How would the value of the number change if you and your partner switched the two digits and wrote 83?

Turn, Talk, and Model:

Use the blocks to model your answer.

What would the model for 83 look like?

Teach and Talk:

Let’s look at the following number.

77

Teach and Talk:

Now I want you to name the number and model it with base-ten blocks.

77

Teach and Talk:

T. will discuss how the digits for the tens place and the ones place are the same while the values of the digits are different.

77

How do you describe a 2-digit number as tens and ones?

Tens Ones

Guided Practice: We Do:

What digits are used to write the number 23?

What are the values of these digits in the number 23?

Why do you think that 20 + 3 means the same thing as 23?

Model and Draw:

Tens Ones

Independent Practice:You Do:

Now you are going to do some problems.Turn to page 27 in your math book.I want you to do problems 5-12 on your own.

Independent Practice:You Do:

Remember to draw a quick picture to show the number and describe the number in two ways.

Guided Practice: We Do: Share and Show:

Boys and girls, take out your math book and turn to page 26.

Let’s look at problem 1. Why can 37 be described as 3 tens 7 ones and also 30 + 7?

Guided Practice: We Do: Quick Check:

On your own, do problems 3 and 4.

Guided Practice: We Do: Share and Show:

What number can be described as 7 tens 9 ones?

How do you describe a 2-digit number as tens and ones?

Tens Ones

Let’s Practice

How does this relate to place value?

Expanded form separates each place value into separate numbers, like this:

4740 + 7

529500 + 20 + 9

Independent Practice:

Word Form: 378 = Three Hundred and seventy-eight Expanded: 145 = ________ + __________ + _________ Word Form:___________________________________________ Expanded: 531 = ________ + __________ + __________ Word Form:___________________________________________ Expanded: 568 = ________ + __________ + __________ Word Form:___________________________________________ Expanded: 227 = ________ + __________ + __________

Accommodations/ Modifications:

Read Aloud: J. F., S. P.,Preferential Seating:Modified Assignments/Worksheets:Peer Buddy: Increased Time:

Key Points

Every number is made up of digits. Each digit has a value (how much it is worth), which depends on its place in the number.

You can use base-ten blocks and a place-value chart to show a number.

You can write numbers

Intro (connect to previous lesson) and Hook:

Today’s objective are: I can use base-ten blocks and a place-value chart to read, write, and represent numbers up to 1000. I can read and write numbers to 1000 in standard, expanded, and word form.

(“I” or “I/We”):

Explain that every number is made up of digits. Each digit has a value (how much it is worth), which depends on its place in the number..

Show a large place-value chart on the board. Point to a place, and have scholars hold up the corresponding blocks for that place (hundreds, tens, or ones).

Then fill in the chart with the number 258. Now have scholars hold up the required number of base-ten blocks in each position of the place-value chart.

(“I” or “I/We”):

Have scholars say what the digits in the hundreds, tens, and ones, places represent and lead them to see that 258 is made up of 2 hundreds, 5 tens, and 8 ones.

Write 258 on the board. Point out to scholars that this is the standard form of the number, the most commonly used form in writing.

Ask: How would you read this number? Write it on the board (two hundred fifty-eight) and explain that this is the word form.

Say that it is

Vocabulary Strategies:

Post on word wallWrite standard form, word form, and expanded form on index cards. Have scholars place cards on examples of each of the different ways to show numbers. Scholars should say the phrase as they place each card.

STANDARD FROM EXPANDED FORM

78 ___ tens + ___ ones ?

7 8

STANDARD FROM EXPANDED FORM

3 ___ tens + ___ ones ?

0 3

STANDARD FROM EXPANDED FORM

29 ___ tens + ___ ones ?

2 9

Guided Practice (“We”):

Complete pages 12-13 from Student Book A with scholars.

Scholars will have their own copy of the pages, and they will be projected on the flipchart.

These pages require scholars to fill in missing numbers to show what the base-ten blocks stand for, and differentiated between standard, word, and expanded form

Closure (re-state the OBJECTIVE):

Turn and talk: What did we learn today?DK restates objective: Today we learned how to use base-ten blocks and place value charts to represent numbers. Being able to represent numbers with base-ten blocks will help us answer our essential questions: What makes a number? What are the relationships that a number can have?

Pull popsicle sticks: What did we learn? Why?

Matching

PLACE VALUE PLAYOFF

Show me what you learned….576

1000

398

721

One thousand

Seven hundred twenty- one

Five hundred seventy-six

Three hundred ninety-eight

Tell me what form this is?1. Eight hundred five

2. 4, 321

3. 900 + 30 + 5

4. 40 + 5

5. five

ClosureExpanded FormWrite the number in expanded form. Ex. 473 = 400 + 70 + 3

123 = ________ + __________ + __________509 = ________ + __________ + __________984 = ________ + __________ + __________472 = ________ + __________ + __________

Quiz:Expanded FormWrite the number in expanded form. Ex. 473 = 400 + 70 + 3

123 = ________ + __________ + __________509 = ________ + __________ + __________984 = ________ + __________ + __________472 = ________ + __________ + __________640 = ________ + __________ + __________

OLS/Study Island Connections

OLS Connection: 9.2, 9.3, & 9.6

Common Core:3.C & 3.D

Thank you for your hard work!If you are watching the recording, please fill out this short survey/

kmail your teacher this code word:

MATH: EXTENSIONJanuary 22, 2013

Mrs. GregoryMrs. Trentham

WELCOME

Manners Matter Show Respect Show Responsibility Show Self-Control HAVE FUN

I can…. I can read and write numbers to 1000. I can show numbers to 1000 using base-ten numerals. I can read and write number names to 1000. I can show numbers to 1000 in expanded form.

CC.2.NBT.3 Read and write numbers to 1000 using base-ten numerals, number names, and expanded form.

How can we write numbers in different ways?

1. Standard Notation453

2. Word Notationfour hundred fifty three

3. Expanded Notation400 + 50 + 3

Quick Review

What ‘s Missing??

What’s Missing?

Your lead! Your turn!

Let’s Practice

More Practice

Expanded Form

Word Form

Game Time

OLS/Study Island Connections

OLS Connection: 9.2, 9.3, & 9.6

Common Core:3.C & 3.D

Thank you for your hard work!If you are watching the recording, please fill out this short survey/

kmail your teacher this code word: