G2 U1 L1 TE
Applied MP
MPs * Embedded MP
Conceptual Lesson Grade 2 · Unit 1 · Lesson 1
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MC: 2.NBT.1a Student Journal Pages
1-4
Today, I will demonstrate how to bundle groups of 10 to build whole numbers.
Vocabulary
Teacher Resources
Whole number: any number including 0 (e.g., 0, 1, 2, 3, …) base ten blocks (used to represent/draw whole numbers)
hundred
ten
one
Considerations: In 1st grade, students practiced bundling groups of ones into tens. In 2nd grade, this concept is extended to the hundreds. Showing students how to use base ten manipulatives will support their conceptual understanding of this concept. Bundling refers to bringing together groups of ten, and exchanging them for the next place value. This is also known as regrouping. Teacher uses “stick” or “rod” interchangeably when speaking of tens. Also use “squares” and “blocks” interchangeably when speaking of hundreds. Teacher uses “bundle” and “regroup” interchangeably.
bundle/regroup Application of MPs:
=
MP2: What does your model of the ones, tens, and hundreds represent? MP7: Can you find any patterns when bundling groups? MP8: Do you see any repetition within your groups?
Copyright © Swun Math
Grade 2 Unit 1 Lesson 1 C TE
Answer Key: I/M
SGP
FCU
HW
1. 12 ones = 1 ten + 2 ones = 12
1. 21 ones = 2 tens + 1 one = 21
1. 4 tens + 3 ones = 43. Yes, the 1. ones needed to be bundled and regrouped to tens.
2. 11 tens + 3 ones = 1 hundred + 2. 22 tens + 9 ones = 2 1 ten + 3 ones = 113
2. 1 hundred + 4 tens + 6 ones
hundreds + 2 tens + 9 ones =
= 146. Yes, the tens needed
229
to be bundled and
2.
regrouped to hundreds. 3.
4. Caroline did not draw 602 correctly. She drew two tens instead of two ones.
Copyright © Swun Math
Grade 2 Unit 1 Lesson 1 C TE
/ *MP1: Make sense of the problem and persevere in solving it! *MP8: Find a strategy to help solve the problem. Directions: Bundle groups of 10.
1.
Introduce base ten blocks and explain how groups of 10 make a new unit
10 ones make 1 ten-stick 10 tens sticks make 1 hundred-square
Show this picture and ask, “What number is shown?”
Model how to regroup the ones into tens and ones.
1 ten and 2 ones = 12
Copyright © Swun Math
Grade 2 Unit 1 Lesson 1 C TE
/
2.
Introduce base ten blocks and explain how groups of 10 make a new unit
10 ones make 1 ten-stick 10 ten-sticks make 1 hundred-square
Show this picture and ask, “What number is shown?”
Model how to regroup the tens into hundreds.
1 hundred, 1 ten, and 3ones = 113
Copyright © Swun Math
Grade 2 Unit 1 Lesson 1 C TE
/ Directions: Bundle groups of 10.
1
Model how to regroup ones, tens, and hundreds to correctly write the value represented in the picture.
Show this picture and ask, “What number is shown?”
Model how to regroup the ones into tens and ones.
2 tens and 1 one = 21
2.
Model how to regroup ones, tens, and hundreds to correctly write the value represented in the picture.
Show this picture and ask, “What number is shown?”
Copyright © Swun Math
Grade 2 Unit 1 Lesson 1 C TE
/
Model how to regroup the tens into hundreds..
2 hundreds, 2 tens, and 9 ones = 229
Copyright © Swun Math
Grade 2 Unit 1 Lesson 1 C TE
Directions: Use base ten blocks to bundle
groups of 10. Write the number.
1. What number is represented below?
Did you need to regroup? If so, where?
2. What number is represented below?
Did you need to regroup? If so, where?
Recap today’s lesson with one or more of the following questions: MP2: What did your model of the ones, tens, and hundreds represent? MP7: Did you find any patterns when bundling groups? MP8: Did you see any repetition within your work?
Copyright © Swun Math
Grade 2 Unit 1 Lesson 1 C TE
Directions: Review
Draw base ten blocks to represent the following numbers.
represents 100
represents 10
represents 1
1. 417
2. 210
3. 308
4. Caroline drew these base ten blocks to represent 602. Was she correct? If not, what was her error?
Copyright © Swun Math
Grade 2 Unit 1 Lesson 1 C TE
MPs * Embedded MP
Conceptual Lesson Grade 2 · Unit 1 · Lesson 1
1
2
3
4
5
*
6
7
8
* *
MC: 2.NBT.1a Student Journal Pages
1-4
Today, I will demonstrate how to bundle groups of 10 to build whole numbers.
Vocabulary
Teacher Resources
Whole number: any number including 0 (e.g., 0, 1, 2, 3, …) base ten blocks (used to represent/draw whole numbers)
hundred
ten
one
Considerations: In 1st grade, students practiced bundling groups of ones into tens. In 2nd grade, this concept is extended to the hundreds. Showing students how to use base ten manipulatives will support their conceptual understanding of this concept. Bundling refers to bringing together groups of ten, and exchanging them for the next place value. This is also known as regrouping. Teacher uses “stick” or “rod” interchangeably when speaking of tens. Also use “squares” and “blocks” interchangeably when speaking of hundreds. Teacher uses “bundle” and “regroup” interchangeably.
bundle/regroup Application of MPs:
=
MP2: What does your model of the ones, tens, and hundreds represent? MP7: Can you find any patterns when bundling groups? MP8: Do you see any repetition within your groups?
Copyright © Swun Math
Grade 2 Unit 1 Lesson 1 C TE
Answer Key: I/M
SGP
FCU
HW
1. 12 ones = 1 ten + 2 ones = 12
1. 21 ones = 2 tens + 1 one = 21
1. 4 tens + 3 ones = 43. Yes, the 1. ones needed to be bundled and regrouped to tens.
2. 11 tens + 3 ones = 1 hundred + 2. 22 tens + 9 ones = 2 1 ten + 3 ones = 113
2. 1 hundred + 4 tens + 6 ones
hundreds + 2 tens + 9 ones =
= 146. Yes, the tens needed
229
to be bundled and
2.
regrouped to hundreds. 3.
4. Caroline did not draw 602 correctly. She drew two tens instead of two ones.
Copyright © Swun Math
Grade 2 Unit 1 Lesson 1 C TE
/ *MP1: Make sense of the problem and persevere in solving it! *MP8: Find a strategy to help solve the problem. Directions: Bundle groups of 10.
1.
Introduce base ten blocks and explain how groups of 10 make a new unit
10 ones make 1 ten-stick 10 tens sticks make 1 hundred-square
Show this picture and ask, “What number is shown?”
Model how to regroup the ones into tens and ones.
1 ten and 2 ones = 12
Copyright © Swun Math
Grade 2 Unit 1 Lesson 1 C TE
/
2.
Introduce base ten blocks and explain how groups of 10 make a new unit
10 ones make 1 ten-stick 10 ten-sticks make 1 hundred-square
Show this picture and ask, “What number is shown?”
Model how to regroup the tens into hundreds.
1 hundred, 1 ten, and 3ones = 113
Copyright © Swun Math
Grade 2 Unit 1 Lesson 1 C TE
/ Directions: Bundle groups of 10.
1
Model how to regroup ones, tens, and hundreds to correctly write the value represented in the picture.
Show this picture and ask, “What number is shown?”
Model how to regroup the ones into tens and ones.
2 tens and 1 one = 21
2.
Model how to regroup ones, tens, and hundreds to correctly write the value represented in the picture.
Show this picture and ask, “What number is shown?”
Copyright © Swun Math
Grade 2 Unit 1 Lesson 1 C TE
/
Model how to regroup the tens into hundreds..
2 hundreds, 2 tens, and 9 ones = 229
Copyright © Swun Math
Grade 2 Unit 1 Lesson 1 C TE
Directions: Use base ten blocks to bundle
groups of 10. Write the number.
1. What number is represented below?
Did you need to regroup? If so, where?
2. What number is represented below?
Did you need to regroup? If so, where?
Recap today’s lesson with one or more of the following questions: MP2: What did your model of the ones, tens, and hundreds represent? MP7: Did you find any patterns when bundling groups? MP8: Did you see any repetition within your work?
Copyright © Swun Math
Grade 2 Unit 1 Lesson 1 C TE
Directions: Review
Draw base ten blocks to represent the following numbers.
represents 100
represents 10
represents 1
1. 417
2. 210
3. 308
4. Caroline drew these base ten blocks to represent 602. Was she correct? If not, what was her error?
Copyright © Swun Math
Grade 2 Unit 1 Lesson 1 C TE
