G2 U1 L8 TE
Applied MP
MPs * Embedded MP
Procedural Lesson Grade 2 · Unit 1 · Lesson 8
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2
3
4
* *
*
5
6
7
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MC: 2.NBT.3 Student Journal Pages
31-36
Today, I will read and represent numbers in expanded form.
Vocabulary
Teacher Resources
Whole number: any number including 0 (e.g., 0, 1, 2, 3, …); the number 113 is a whole number. Base ten blocks (used to represent/draw whole numbers) hundreds
tens
ones
Considerations: Emphasize that another way to write the whole number 113 is 100 + 10 + 3. When writing a number in expanded form, the number is decomposed. This term will be referenced when using strategies to add and subtract.
Steps: 1. 2. 3. 4.
100
+
10
+
3
The expanded form of 113. Standard form: the way we usually write numbers
Count the ones cubes; write it’s value. Count the tens rods; write it’s value. Count the hundred squares; write it’s value. Write the whole number.
Application of MPs: MP2: How do you know your answer is reasonable? MP7: Did you notice any patterns when expanding numbers? MP8: What strategies did you use to help solve the problems?
Decompose: taking apart a number into hundreds, tens, and ones
Copyright © Swun Math
8
Grade 2 Unit 1 Lesson 8 P TE
Answer Key: I/M
SGP
FCU
SP
CH
HW
1. 300 + 30 + 5
1. 400 + 60 + 4
1. 300 + 70 + 6
1. 300 + 50 + 4
1. 400 + 3 = 403
1. 100 + 70 + 4
2. 700 + 10 + 7
2. 500 + 20 + 3
2. 500 + 40 + 2
2. 500 + 30 + 5
2. ● ● ● ● ● ● ●
2. 300 + 50 + 6
3. 288
3. 400 + 40 + 3
4. 192
4. 586
5. 400+20+4
5. The answer is incorrect because the problem asked for the answer to be in expanded form and the answer is shown in standard form. The correct answer is 200+30+4.
6. Yes, the answer is correct because there are 0 tens in
6. 868; picture model:
I I I I I I
the number 802. Therefore, when expanding the number the tens
Copyright © Swun Math
Grade 2 Unit 1 Lesson 8 P TE
/ *MP1: Make sense of the problem and persevere in solving it! *MP8: Find a strategy to help solve the problem. Directions: Write in expanded form.
1. What is another way to write 335?
+
+
=
2. What is another way to write 717?
+
+
=
MP2: How do you know your answer is reasonable? MP7: Did you notice any patterns when expanding numbers? Copyright © Swun Math
Grade 2 Unit 1 Lesson 8 P TE
Directions: Write in expanded form.
1. What is another way to write 464?
+
+
=
2. What is the expanded form of 523?
+
+
=
MP7: Do you notice any patterns when expanding numbers? MP8: What strategies can you use to help solve the problems? Copyright © Swun Math
Grade 2 Unit 1 Lesson 8 P TE
Directions: Write in expanded form.
1. What is another way to write 376?
+
+
=
2. What is the expanded form of 542?
+
Copyright © Swun Math
+
=
Grade 2 Unit 1 Lesson 8 P TE
Name: ____________________________ Directions: Solve.
Date: ______________________________
1. What is another way to write 354?
+
+
=
2. What is the expanded form of 535?
+
+
=
3. What is another way to write 200 + 80 + 8?
Copyright © Swun Math
Grade 2 Unit 1 Lesson 8 P TE
4. What is another way to write 100 + 90 +2?
5. What number is shown?
+
+
=
6. Is the answer below correct? Explain why or why not. Write 802 in expanded form. Answer: 800 + 2
Copyright © Swun Math
Grade 2 Unit 1 Lesson 8 P TE
1. Write the following number in expanded form and standard form.
2. The whole number 107 is written in expanded form. Represent it using base ten blocks.
100 + 7
Extension
*MP4: How can you relate this to something in real life?
Explain why the numbers are added together when written in expanded form.
Reaching Consensus
*MP3: Do you agree/disagree with what
said?
Student Presentations
*MP6: How do you know your answers are correct/reasonable?
Recap today’s lesson with one or more of the following MP questions:
MP2: How did you know your answer was reasonable? MP7: Did you notice any patterns when expanding numbers? MP8: What strategies did you use to help solve the problems?
Copyright © Swun Math
Grade 2 Unit 1 Lesson 8 P TE
Name: ____________________________ Date: ______________________________
1. What is the expanded form of 174?
Answer: 100 + 70 + 4
2. What is another way to write 356?
+
+
=
3. What is the expanded form of 443?
+
Copyright © Swun Math
+
=
Grade 2 Unit 1 Lesson 8 P TE
4. What is another way to write 500 + 80 + 6?
5. Explain if the answer is correct. Include why or why not? Write the number below in expanded form.
Answer: 234
+
+
=
6. What is another way to write 800 + 60 + 8? Draw a model to show the value of each place value represented in the number.
Copyright © Swun Math
Grade 2 Unit 1 Lesson 8 P TE
MPs * Embedded MP
Procedural Lesson Grade 2 · Unit 1 · Lesson 8
1
2
3
4
* *
*
5
6
7
* * *
MC: 2.NBT.3 Student Journal Pages
31-36
Today, I will read and represent numbers in expanded form.
Vocabulary
Teacher Resources
Whole number: any number including 0 (e.g., 0, 1, 2, 3, …); the number 113 is a whole number. Base ten blocks (used to represent/draw whole numbers) hundreds
tens
ones
Considerations: Emphasize that another way to write the whole number 113 is 100 + 10 + 3. When writing a number in expanded form, the number is decomposed. This term will be referenced when using strategies to add and subtract.
Steps: 1. 2. 3. 4.
100
+
10
+
3
The expanded form of 113. Standard form: the way we usually write numbers
Count the ones cubes; write it’s value. Count the tens rods; write it’s value. Count the hundred squares; write it’s value. Write the whole number.
Application of MPs: MP2: How do you know your answer is reasonable? MP7: Did you notice any patterns when expanding numbers? MP8: What strategies did you use to help solve the problems?
Decompose: taking apart a number into hundreds, tens, and ones
Copyright © Swun Math
8
Grade 2 Unit 1 Lesson 8 P TE
Answer Key: I/M
SGP
FCU
SP
CH
HW
1. 300 + 30 + 5
1. 400 + 60 + 4
1. 300 + 70 + 6
1. 300 + 50 + 4
1. 400 + 3 = 403
1. 100 + 70 + 4
2. 700 + 10 + 7
2. 500 + 20 + 3
2. 500 + 40 + 2
2. 500 + 30 + 5
2. ● ● ● ● ● ● ●
2. 300 + 50 + 6
3. 288
3. 400 + 40 + 3
4. 192
4. 586
5. 400+20+4
5. The answer is incorrect because the problem asked for the answer to be in expanded form and the answer is shown in standard form. The correct answer is 200+30+4.
6. Yes, the answer is correct because there are 0 tens in
6. 868; picture model:
I I I I I I
the number 802. Therefore, when expanding the number the tens
Copyright © Swun Math
Grade 2 Unit 1 Lesson 8 P TE
/ *MP1: Make sense of the problem and persevere in solving it! *MP8: Find a strategy to help solve the problem. Directions: Write in expanded form.
1. What is another way to write 335?
+
+
=
2. What is another way to write 717?
+
+
=
MP2: How do you know your answer is reasonable? MP7: Did you notice any patterns when expanding numbers? Copyright © Swun Math
Grade 2 Unit 1 Lesson 8 P TE
Directions: Write in expanded form.
1. What is another way to write 464?
+
+
=
2. What is the expanded form of 523?
+
+
=
MP7: Do you notice any patterns when expanding numbers? MP8: What strategies can you use to help solve the problems? Copyright © Swun Math
Grade 2 Unit 1 Lesson 8 P TE
Directions: Write in expanded form.
1. What is another way to write 376?
+
+
=
2. What is the expanded form of 542?
+
Copyright © Swun Math
+
=
Grade 2 Unit 1 Lesson 8 P TE
Name: ____________________________ Directions: Solve.
Date: ______________________________
1. What is another way to write 354?
+
+
=
2. What is the expanded form of 535?
+
+
=
3. What is another way to write 200 + 80 + 8?
Copyright © Swun Math
Grade 2 Unit 1 Lesson 8 P TE
4. What is another way to write 100 + 90 +2?
5. What number is shown?
+
+
=
6. Is the answer below correct? Explain why or why not. Write 802 in expanded form. Answer: 800 + 2
Copyright © Swun Math
Grade 2 Unit 1 Lesson 8 P TE
1. Write the following number in expanded form and standard form.
2. The whole number 107 is written in expanded form. Represent it using base ten blocks.
100 + 7
Extension
*MP4: How can you relate this to something in real life?
Explain why the numbers are added together when written in expanded form.
Reaching Consensus
*MP3: Do you agree/disagree with what
said?
Student Presentations
*MP6: How do you know your answers are correct/reasonable?
Recap today’s lesson with one or more of the following MP questions:
MP2: How did you know your answer was reasonable? MP7: Did you notice any patterns when expanding numbers? MP8: What strategies did you use to help solve the problems?
Copyright © Swun Math
Grade 2 Unit 1 Lesson 8 P TE
Name: ____________________________ Date: ______________________________
1. What is the expanded form of 174?
Answer: 100 + 70 + 4
2. What is another way to write 356?
+
+
=
3. What is the expanded form of 443?
+
Copyright © Swun Math
+
=
Grade 2 Unit 1 Lesson 8 P TE
4. What is another way to write 500 + 80 + 6?
5. Explain if the answer is correct. Include why or why not? Write the number below in expanded form.
Answer: 234
+
+
=
6. What is another way to write 800 + 60 + 8? Draw a model to show the value of each place value represented in the number.
Copyright © Swun Math
Grade 2 Unit 1 Lesson 8 P TE
