G2 U1 L12 TE
Applied MP
MPs * Embedded MP
Conceptual Lesson Grade 2 · Unit 1 · Lesson 12 MC: 2.NBT.4
1
2
*
3
4
5
6
7
* *
Student Journal Pages
47-50
Today, I will use the greater than or less than sign to compare three -digit numbers.
Vocabulary
Teacher Resources Considerations:
greater than
less than
215 > 212
212 < 215
Other words used to compare numbers: more most greatest least
For students struggling with the correct symbol, consider having them place two stacked dots next to the greater number and one dot next to the lesser number. When connecting the dots as an arrow, they will form the correct sign. Have students then read the inequality to help them connect the symbol to its meaning. It is important to explicitly apply an understanding of place value when comparing numbers.
Steps: 1. Write the numbers and model each number with base 10 blocks. 2. Compare hundreds. 3. Compare ones. 4. Decide which sign to use.
Application of MPs: MP2: What math symbols do you use? MP6: How do you know your answer is reasonable? MP7: What rules help you solve this problem? MP8: What strategies can you use to help solve the problem?
Copyright © Swun Math
8
Grade 2 Unit 1 Lesson 12 C TE
Answer Key: I/M
SGP
FCU
HW
1. 132 < 142; 142 > 132
1. 231 < 251; 251 > 231
1. 429 < 439; 439 > 429
1. 740; Check for accurate models
2. 165 < 167; 167 > 165
2. 314 < 319; 319 > 314
2. 272 < 274; 274 > 272
2. 206; Check for accurate models
3. four hundred ninety; Check for accurate models
4. one hundred four; 100 + 4; Check for accurate models. Explanations may vary.
Copyright © Swun Math
Grade 2 Unit 1 Lesson 12 C TE
/ *MP1: Make sense of the problem and persevere in solving it! *MP8: Find a strategy to help solve the problem. Directions: Read and solve.
1.
Write the numbers 132 and 142 and model each number with base ten blocks.
132 =
142 =
Compare the hundreds. (same)
Compare the tens. (4 > 3)
Since the values of the digits in the tens place is different, there is no need to look at the ones place. Write comparisons:
Copyright © Swun Math
132
< 142
142
> 132
Grade 2 Unit 1 Lesson 12 C TE
/ Directions: Read and solve.
2.
Write the numbers 165 and 167 and model each number with base ten blocks.
165 =
167 =
Compare the hundreds. (same)
Compare the tens. (same)
Compare the ones. (5 165
Grade 2 Unit 1 Lesson 12 C TE
Directions: Read and solve.
1.
Write the numbers 231 and 251 on the board.
Compare using base ten blocks.
231
2.
Write the numbers 319 and 314 on the board.
Compare using base ten blocks.
Copyright © Swun Math
314
Grade 2 Unit 1 Lesson 12 C TE
Directions: Read and solve.
1. Write 429 and 439 on the board. Students will model with base ten blocks and compare.
2. Write 274 and 272 on the board. Students will model with base ten blocks and compare.
Recap today’s lesson with one or more of the following questions: MP2: What math symbols did you use? MP6: How did you know your answer was reasonable? MP7: What rules helped you solve this problem? MP8: What strategies did you use to help solve the problem?
Copyright © Swun Math
Grade 2 Unit 1 Lesson 12 C TE
Name: ____________________________ Directions: Review.
Date: ______________________________
1. Write the number seven hundred forty in standard form and draw a model to represent the value.
2. Write the number two hundred six in standard form and draw a model to represent the value.
Copyright © Swun Math
Grade 2 Unit 1 Lesson 12 C TE
Directions: Review.
3. Write the number 490 in word form and draw a model to represent the value.
4. Write the number 104 in word form and draw a model to represent the value. Write this number in expanded form. Explain to your homework buddy how all four representations show the same number.
Copyright © Swun Math
Grade 2 Unit 1 Lesson 12 C TE
MPs * Embedded MP
Conceptual Lesson Grade 2 · Unit 1 · Lesson 12 MC: 2.NBT.4
1
2
*
3
4
5
6
7
* *
Student Journal Pages
47-50
Today, I will use the greater than or less than sign to compare three -digit numbers.
Vocabulary
Teacher Resources Considerations:
greater than
less than
215 > 212
212 < 215
Other words used to compare numbers: more most greatest least
For students struggling with the correct symbol, consider having them place two stacked dots next to the greater number and one dot next to the lesser number. When connecting the dots as an arrow, they will form the correct sign. Have students then read the inequality to help them connect the symbol to its meaning. It is important to explicitly apply an understanding of place value when comparing numbers.
Steps: 1. Write the numbers and model each number with base 10 blocks. 2. Compare hundreds. 3. Compare ones. 4. Decide which sign to use.
Application of MPs: MP2: What math symbols do you use? MP6: How do you know your answer is reasonable? MP7: What rules help you solve this problem? MP8: What strategies can you use to help solve the problem?
Copyright © Swun Math
8
Grade 2 Unit 1 Lesson 12 C TE
Answer Key: I/M
SGP
FCU
HW
1. 132 < 142; 142 > 132
1. 231 < 251; 251 > 231
1. 429 < 439; 439 > 429
1. 740; Check for accurate models
2. 165 < 167; 167 > 165
2. 314 < 319; 319 > 314
2. 272 < 274; 274 > 272
2. 206; Check for accurate models
3. four hundred ninety; Check for accurate models
4. one hundred four; 100 + 4; Check for accurate models. Explanations may vary.
Copyright © Swun Math
Grade 2 Unit 1 Lesson 12 C TE
/ *MP1: Make sense of the problem and persevere in solving it! *MP8: Find a strategy to help solve the problem. Directions: Read and solve.
1.
Write the numbers 132 and 142 and model each number with base ten blocks.
132 =
142 =
Compare the hundreds. (same)
Compare the tens. (4 > 3)
Since the values of the digits in the tens place is different, there is no need to look at the ones place. Write comparisons:
Copyright © Swun Math
132
< 142
142
> 132
Grade 2 Unit 1 Lesson 12 C TE
/ Directions: Read and solve.
2.
Write the numbers 165 and 167 and model each number with base ten blocks.
165 =
167 =
Compare the hundreds. (same)
Compare the tens. (same)
Compare the ones. (5 165
Grade 2 Unit 1 Lesson 12 C TE
Directions: Read and solve.
1.
Write the numbers 231 and 251 on the board.
Compare using base ten blocks.
231
2.
Write the numbers 319 and 314 on the board.
Compare using base ten blocks.
Copyright © Swun Math
314
Grade 2 Unit 1 Lesson 12 C TE
Directions: Read and solve.
1. Write 429 and 439 on the board. Students will model with base ten blocks and compare.
2. Write 274 and 272 on the board. Students will model with base ten blocks and compare.
Recap today’s lesson with one or more of the following questions: MP2: What math symbols did you use? MP6: How did you know your answer was reasonable? MP7: What rules helped you solve this problem? MP8: What strategies did you use to help solve the problem?
Copyright © Swun Math
Grade 2 Unit 1 Lesson 12 C TE
Name: ____________________________ Directions: Review.
Date: ______________________________
1. Write the number seven hundred forty in standard form and draw a model to represent the value.
2. Write the number two hundred six in standard form and draw a model to represent the value.
Copyright © Swun Math
Grade 2 Unit 1 Lesson 12 C TE
Directions: Review.
3. Write the number 490 in word form and draw a model to represent the value.
4. Write the number 104 in word form and draw a model to represent the value. Write this number in expanded form. Explain to your homework buddy how all four representations show the same number.
Copyright © Swun Math
Grade 2 Unit 1 Lesson 12 C TE
