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Name. Learning Objective. We will compare three-digit numbers using symbols 1. CFU. What are we going to do? What are symbols ? Symbols are __________. Activate Prior Knowledge. Place value : The place is the position of a digit in a number. - PowerPoint PPT Presentation
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CCSS 2nd Grade Numbers and Operations in Base Ten 4.0Compare two three-digit numbers based on meanings of
the hundreds, tens, and ones digits, using >, =, and < symbols to record the results of comparisons.
Lesson to be used by EDI-trained teachers only.
READY TO TEACHSM EDI® Lessons©2013 All rights reserved.
We will compare three-digit numbers using symbols1.
What are we going to do?
What are symbols?Symbols are __________.
What are we going to do?
What are symbols?Symbols are __________.
CFUCFU
Students, you already know how to find the value of a digit by knowing its position in a number. Now, we will use place value to compare three-digit numbers using symbols.
Students, you already know how to find the value of a digit by knowing its position in a number. Now, we will use place value to compare three-digit numbers using symbols.
Make ConnectionMake Connection
1 shapes that stand for something1 shapes that stand for something
VocabularyVocabulary
NameLearning Objective
Learning Objective
Activate Prior Knowledge
Activate Prior Knowledge
Place value: The place is the position of a digit in a number. The value is the worth of the digit due to its
position.
1. What is the value of the 2 in 271?
2. What is the value of the 3 in 321?
CCSS 2nd Grade Numbers and Operations in Base Ten 4.0Compare three-digit numbers using symbols.
Lesson to be used by EDI-trained teachers only. ©2013 All rights reserved.
Why is the number 367 less than the number 461?
A It has less ones. B It has less tens. C It has less hundreds.
Why is the number 367 less than the number 461?
A It has less ones. B It has less tens. C It has less hundreds.
CFU 1 CFU 1
Why is the number 725 greater than the number 721?
A It has more ones. B It has more tens. C It has more hundreds.Explain why the number 634 is equal to the number 634.
In your own words, what does it mean to compare numbers?To compare numbers _______.
Why is the number 725 greater than the number 721?
A It has more ones. B It has more tens. C It has more hundreds.Explain why the number 634 is equal to the number 634.
In your own words, what does it mean to compare numbers?To compare numbers _______.
CFU 2CFU 2
2 figure out2 figure out
VocabularyVocabulary
Concept DevelopmentConcept Development
To compare numbers means to determine2 whether a number is less than, greater than, or equal to another number.
Comparing Numbers
less than
greater than
equal to
252 321252 has less hundreds than 321.
252 271252 has the same hundreds
as 271 but less tens.
252 252252 has the same hundreds,
tens and ones as 252.
Go to Skill Dev 1
Go to Skill Dev 2
321 252321 has more hundreds than 252.
321 320321 has the same hundreds and
tens as 320 but more ones.
CCSS 2nd Grade Numbers and Operations in Base Ten 4.0Compare three-digit numbers using symbols.
Lesson to be used by EDI-trained teachers only. ©2013 All rights reserved.
How did I/you compare each digit in the numbers?How did I/you know which symbol to write?
How did I/you compare each digit in the numbers?How did I/you know which symbol to write?
CFUCFU
12
3 find4 explain
3 find4 explain
VocabularyVocabulary
Compare three-digit numbers using symbols. 1 Compare each digit in the numbers, starting at the highest place value.
If digits are different, identify3 the smaller digit. (underline)If digits are the same, continue to the next lower place value.
Write the correct symbol.Interpret4 your answer.
a
23
b
Skill Development/Guided Practice 1
Skill Development/Guided Practice 1
To compare numbers means to determine whether a number is less than, greater than, or equal to another number.
1.
379 456
because ___________________________.
2.
168 231
because ___________________________.
3.
142 145
because ___________________________.
4.
248 267
because _________________________.
CCSS 2nd Grade Numbers and Operations in Base Ten 4.0Compare three-digit numbers using symbols.
Lesson to be used by EDI-trained teachers only. ©2013 All rights reserved.
Skill Development/Guided Practice 1 (continued)
Skill Development/Guided Practice 1 (continued)
How did I/you compare each digit in the numbers?How did I/you know which symbol to write?
How did I/you compare each digit in the numbers?How did I/you know which symbol to write?
CFUCFU
12
Compare three-digit numbers using symbols. 1 Compare each digit in the numbers, starting at the highest place value.
If digits are different, identify the smaller digit. (underline)If digits are the same, continue to the next lower place value.
Write the correct symbol.Interpret your answer.
a
23
b
To compare numbers means to determine whether a number is less than, greater than, or equal to another number.
5.
480 554
because ___________________________.
6.
678 804
because ___________________________.
7.
422 435
because ___________________________.
8.
340 349
because __________________________.
CCSS 2nd Grade Numbers and Operations in Base Ten 4.0Compare three-digit numbers using symbols.
Lesson to be used by EDI-trained teachers only. ©2013 All rights reserved.
How did I/you compare each digit in the numbers?How did I/you know which symbol to write?
How did I/you compare each digit in the numbers?How did I/you know which symbol to write?
CFUCFU
12
Compare three-digit numbers using symbols. 1 Compare each digit in the numbers, starting at the highest place value.
If digits are different, identify the smaller digit. (underline)If digits are the same, continue to the next lower place value.
Write the correct symbol.Interpret your answer.
a
23
b
Skill Development/Guided Practice 2
Skill Development/Guided Practice 2
To compare numbers means to determine whether a number is less than, greater than, or equal to another number.
1.
251 123
because ___________________________.
2.
235 184
because ___________________________.
3.
179 173
because ___________________________.
4.
237 227
because _________________________.
CCSS 2nd Grade Numbers and Operations in Base Ten 4.0Compare three-digit numbers using symbols.
Lesson to be used by EDI-trained teachers only. ©2013 All rights reserved.
Skill Development/Guided Practice 2 (continued)
Skill Development/Guided Practice 2 (continued)
How did I/you compare each digit in the numbers?How did I/you know which symbol to write?
How did I/you compare each digit in the numbers?How did I/you know which symbol to write?
CFUCFU
12
Compare three-digit numbers using symbols. 1 Compare each digit in the numbers, starting at the highest place value.
If digits are different, identify the smaller digit. (underline)If digits are the same, continue to the next lower place value.
Write the correct symbol.Interpret your answer.
a
23
b
To compare numbers means to determine whether a number is less than, greater than, or equal to another number.
5.
126 126
because ___________________________.
6.
173 173
because ___________________________.
7.
774 623
because ___________________________.
8.
395 393
because ___________________________.
CCSS 2nd Grade Numbers and Operations in Base Ten 4.0Compare three-digit numbers using symbols.
Lesson to be used by EDI-trained teachers only. ©2013 All rights reserved.
Comparing numbers will help you know which amount is more or less.
Comparing numbers will help you do well on tests.
1
Does anyone else have another reason why it is relevant to compare numbers using symbols? (Pair-Share) Why is it relevant to compare numbers using symbols? You may give me one of my reasons or one of your own. Which reason is more relevant to you? Why?
Does anyone else have another reason why it is relevant to compare numbers using symbols? (Pair-Share) Why is it relevant to compare numbers using symbols? You may give me one of my reasons or one of your own. Which reason is more relevant to you? Why?
CFUCFU
2
RelevanceRelevance
Sample Test Question:
42. Which number makes the comparison true?
A 389 B 492 C 393 D 391
391 > ?
Which group books of would you rather carry?
or120 pounds
9pounds
To compare numbers means to determine whether a number is less than, greater than, or equal to another number.
CCSS 2nd Grade Numbers and Operations in Base Ten 4.0Compare three-digit numbers using symbols.
Lesson to be used by EDI-trained teachers only. ©2013 All rights reserved.
Skill ClosureSkill Closure
Access Common CoreAccess Common Core
Summary ClosureSummary Closure
To compare numbers means to determine whether a number is less than, greater than, or equal to another number.
Compare three-digit numbers using symbols. 1 Compare each digit in the numbers, starting at the highest place value.
If digits are different, identify the smaller digit. (underline)If digits are the same, continue to the next lower place value.
Write the correct symbol.Interpret your answer.
a
23
b
What did you learn today about comparing three-digit numbers using symbols? (Pair-Share) Use words from the word bank.
Write a number that will make the comparison true. Explain how you know the number will make the comparison true.
478 < ___
1.
249 315
because ___________________________.
2.
221 212
because ___________________________.
Word Bank
comparegreater than
less thanequal to
digitssymbol
CCSS 2nd Grade Numbers and Operations in Base Ten 4.0Compare three-digit numbers using symbols.
Lesson to be used by EDI-trained teachers only. ©2013 All rights reserved.
NameIndependent Practice
Independent Practice
Compare three-digit numbers using symbols. 1 Compare each digit in the numbers, starting at the highest place value.
If digits are different, identify the smaller digit. (underline)If digits are the same, continue to the next lower place value.
Write the correct symbol.Interpret your answer.
a
23
b
To compare numbers means to determine whether a number is less than, greater than, or equal to another number.
1.
258 318
because ___________________________.
2.
263 276
because ___________________________.
3.
848 903
because ___________________________.
4.
473 478
because _________________________.
CCSS 2nd Grade Numbers and Operations in Base Ten 4.0Compare three-digit numbers using symbols.
Lesson to be used by EDI-trained teachers only. ©2013 All rights reserved.
Independent Practice (continued)
Independent Practice (continued)
Compare three-digit numbers using symbols. 1 Compare each digit in the numbers, starting at the highest place value.
If digits are different, identify the smaller digit. (underline)If digits are the same, continue to the next lower place value.
Write the correct symbol.Interpret your answer.
a
23
b
To compare numbers means to determine whether a number is less than, greater than, or equal to another number.
5.
225 149
because ___________________________.
6.
138 132
because ___________________________.
7.
167 167
because ___________________________.
8.
993 899
because ___________________________.
CCSS 2nd Grade Numbers and Operations in Base Ten 4.0Compare three-digit numbers using symbols.
Lesson to be used by EDI-trained teachers only. ©2013 All rights reserved.
NamePeriodic Review 1
Periodic Review 1
1.
246 446
because ___________________________.
2.
396 330
because ___________________________.
3.
530 460
because ___________________________.
4.
355 355
because _________________________.
5.
616 647
because ___________________________.
6.
833 831
because _________________________.
CCSS 2nd Grade Numbers and Operations in Base Ten 4.0Compare three-digit numbers using symbols.
Lesson to be used by EDI-trained teachers only. ©2013 All rights reserved.
________________________________________________________________
________________________________________________________________
NameAccess Common Core
Access Common Core
1. Dona has 582 shells. Clayton has 576 shells. Who has more shells? How do you know?Show your answer using the correct symbols.
2. Melissa has 332 pennies. Leonard has 341 pennies. Who has more pennies? How do you know?Show your answer using the correct symbols.
3. Chandra has 566 stamps. Erik has 566 stamps. Who has more stamps? How do you know?Show your answer using the correct symbols.
________________________________________________________________
________________________________________________________________
________________________________________________________________
________________________________________________________________
CCSS 2nd Grade Numbers and Operations in Base Ten 4.0Compare three-digit numbers using symbols.
Lesson to be used by EDI-trained teachers only. ©2013 All rights reserved.
NamePeriodic Review 2
Periodic Review 2
1.838 806
because ___________________________.
2.125 123
because ___________________________.
3.361 417
because ___________________________.
4.943 943
because _________________________.
Access Common CoreAccess Common Core
1. Edwin said that 571 > 631 because 571 has more tens than 631.Explain why Edwin is incorrect.
2. Sophie said that 341 < 338 because 341 has less ones than 338.Explain why Sophie is incorrect.
3. Melvin said that 257 = 253 because 257 and 253 have the same hundreds and tens.Explain why Melvin is incorrect.
________________________________________________________________
________________________________________________________________
________________________________________________________________
________________________________________________________________
________________________________________________________________
________________________________________________________________
CCSS 2nd Grade Numbers and Operations in Base Ten 4.0Compare three-digit numbers using symbols.
Lesson to be used by EDI-trained teachers only. ©2013 All rights reserved.
NamePeriodic Review 3
Periodic Review 3
Access Common CoreAccess Common Core
1.323 192
because ___________________________.
2.582 579
because ___________________________.
1. Use the digits 1,5, and 7 to make a number less than 517.
_____ _____ _____
Use the digits 1,5, and 7 to make a number greater than 517.
_____ _____ _____
Use the digits 1,5, and 7 to make a number equal to 517.
_____ _____ _____
2. Use the digits 2,6, and 8 to make a number less than 286.
_____ _____ _____
Use the digits 2,6, and 8 to make a number greater than 286.
_____ _____ _____
Use the digits 2,6, and 8 to make a number equal to 286.
_____ _____ _____
3. Use the digits 3,4, and 9 to make a number less than 439.
_____ _____ _____
Use the digits 3,4, and 9 to make a number greater than 439.
_____ _____ _____
Use the digits 3,4, and 9 to make a number equal to 439.
_____ _____ _____