G2 U1 L8 SJ
Applied MP
MPs * Embedded MP
Numbers in Expanded Form Procedural Lesson Grade 2 · Unit 1 · Lesson 8
1
2
3
4
* *
*
5
6
7
* * *
MC: 2.NBT.3
Objective: Today, I will ____________________ and ____________________ numbers in ____________________ ____________________.
Vocabulary
Notes
Whole number: any number including 0 (e.g., 0, 1, 2, 3, …); the number 113 is a whole number.
When writing a number in expanded form, the number is decomposed.
Base ten blocks (used to represent/draw whole numbers) hundreds
100
tens
+
The
10
ones
+
3
form of 113.
form: the way we usually write numbers Decompose: taking apart a number into hundreds, tens, and ones
Copyright © Swun Math
8
Grade 2 Unit 1 Lesson 8 SJ
Structured Guided Practice 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 SJ
Final Check for Understanding (White Board Time or Circulate &Check Work) 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 SJ
Student Practice Unit 1 Lesson 8: Numbers in Expanded Form
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 SJ
Student Practice Unit 1 Lesson 8: Numbers in Expanded Form
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 SJ
Challenge Problems
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?
Closure 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 SJ
MPs * Embedded MP
Numbers in Expanded Form Procedural Lesson Grade 2 · Unit 1 · Lesson 8
1
2
3
4
* *
*
5
6
7
* * *
MC: 2.NBT.3
Objective: Today, I will ____________________ and ____________________ numbers in ____________________ ____________________.
Vocabulary
Notes
Whole number: any number including 0 (e.g., 0, 1, 2, 3, …); the number 113 is a whole number.
When writing a number in expanded form, the number is decomposed.
Base ten blocks (used to represent/draw whole numbers) hundreds
100
tens
+
The
10
ones
+
3
form of 113.
form: the way we usually write numbers Decompose: taking apart a number into hundreds, tens, and ones
Copyright © Swun Math
8
Grade 2 Unit 1 Lesson 8 SJ
Structured Guided Practice 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 SJ
Final Check for Understanding (White Board Time or Circulate &Check Work) 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 SJ
Student Practice Unit 1 Lesson 8: Numbers in Expanded Form
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 SJ
Student Practice Unit 1 Lesson 8: Numbers in Expanded Form
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 SJ
Challenge Problems
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?
Closure 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 SJ
