The document outlines lessons on place value and number comparison for numbers up to 100, emphasizing counting, ordering, writing, and understanding the significance of tens and ones. It provides exercises for students to practice grouping sets of ones into tens and recognizing the relationships between numbers using comparison symbols. Additionally, it includes quizzes and models to reinforce learning objectives related to whole numbers and their place values.

1. Place Value: Numbers to 100 Lessons 4-1 to 4-5 Devyn Singleton Cohort 21 Tech 290 September 17, 2008

2. Standards NS 1.1 (Key standard) Count, read, and write whole numbers to 1,000 and identify the place value for each digit. NS 1.3 (Key standard) Order and compare whole numbers to 1,000 by using the symbols <, =, >.

3. Numbers QUIZ

4. Models for Tens How can you use ones to make tens? Ones Ones are separated Tens Connect ten ones together to make a ten

5. Models for Tens 10 ones = 1 ten train 20 ones = 2 ten trains

6. Models for Tens 1.____ ones Make ____ tens 2.____ ones Make ____ tens Do you understand? Why do we group ones into tens? 20 2 30 3

7. Models for Tens and Ones In a two-digit number, what do the first and second digits tell you? Show 23. ___ tens ___ ones 2 3 Ones Tens

8. Models for Tens and Ones Circle groups of ten How many tens? How many ones? Put the tens and ones together. What number is this model showing? 3 2 32

9. Models for Tens and Ones Circle groups of ten ____ tens ____ ones ____ ____ ten ____ ones ____ How many tens are in 54? How do you know? 5 1 7 17 55 5

10. Reading and Writing Numbers How are numbers through 99 written as words? Number words Digit 1. 28 ___ tens ___ ones _______________ 2. 56 ___ tens ___ones _______________ two 4 six 7 eight 12 15 sixteen 18 twenty 30 fourty 80 2 8 twenty - eight 5 6 fifty - six 10 ten 20 _____ ___ thirty 40 _____ 50 fifty 60 sixty 70 seventy ___ eighty 90 ninety 11 eleven __ twelve 13 thirteen 14 fourteen __ fifteen 16 ______ 17 seventeen __ eighteen 19 nineteen 1 One 2 ______ 3 three ____ four 5 five 6 ______ ___seven 8 ______ 9 nine Tens Teens Ones

11. Reading and Writing Numbers The number 64 has ___ Digits. 6 tens is _______ 4 ones is ________ The number word for 60 Is _________. The number word for 4 Is _________. Put the number words together and add a hyphen: _____________ two 4 six 7 eight 12 15 sixteen 18 twenty 30 fourty 80 2 60 4 sixty four sixty - four 6 4 10 ten 20 _____ ___ thirty 40 _____ 50 fifty 60 sixty 70 seventy ___ eighty 90 ninety 11 eleven __ twelve 13 thirteen 14 fourteen __ fifteen 16 ______ 17 seventeen __ eighteen 19 nineteen 1 One 2 ______ 3 three ____ four 5 five 6 ______ ___seven 8 ______ 9 nine Tens Teens Ones ones tens

12. Reading and Writing Numbers Write the number. Fifty-six _____ Fourteen ______ Write the number word. 66 ____________ 17 ____________ What is the same about the Number words for 6, 16, And 64? What is different? two 4 six 7 eight 12 15 sixteen 18 twenty 30 fourty 80 56 14 sixty-six seventeen 10 ten 20 _____ ___ thirty 40 _____ 50 fifty 60 sixty 70 seventy ___ eighty 90 ninety 11 eleven __ twelve 13 thirteen 14 fourteen __ fifteen 16 ______ 17 seventeen __ eighteen 19 nineteen 1 One 2 ______ 3 three ____ four 5 five 6 ______ ___seven 8 ______ 9 nine Tens Teens Ones

13. Using Models to Compare Numbers How can you compare two-digit numbers? Greater than Less than 37 73 43 34 62 26 is greater than is greater than is greater than is less than is less than is less than 2 6 3 4 7 3 Ones Tens 6 2 4 3 3 7 Ones Tens

14. Using Models to Compare Numbers Which number is greater? Compare the numbers. Do 34 and 26 have the same number of tens? How do you know? 34 26 34 has more tens than 26. 34 26 is greater than is less than Ones Tens Ones Tens

15. Using Models to Compare Numbers Write the number of cubes. Circle is greater than or is less than . 1. ____ ____ 2. ____ ____ is greater than is less than 15 13 is greater than is less than 12 21

16. Using Symbols to Compare Numbers How can you use the symbols >, <, and = to compare two-digit numbers? Greater than > Less than < Equal to = is less than is greater than is equal to 7 3 Ones Tens 2 5 Ones Tens 8 2 Ones Tens 1 6 Ones Tens 3 4 Ones Tens 3 4 Ones Tens

17. Using Symbols to Compare Numbers You can change the order of the numbers you compare. 23 is greater than 15 15 is less than 23 You can compare numbers using >, < and =. The open part faces the greater number. 23 > 15 twenty-three is greater than fifteen 15 < 23 fifteen is less than twenty-three.

18. Using Symbols to Compare Numbers Write >, <, or = in the 25 16 2. 14 30 27 27 4. 34 36 25 16 6. 19 19 Which number is greater? How do you know? 83 15 > > > < < = =

19. Quiz 30 ones make ____ tens How many cubes? Write the number word for the number 37. ______________ 25 22 5. 33 33 6. 67 76 3 29 thirty-seven > = <

20. References Images provided by: Microsoft Office Clip Art http:// office.microsoft.com /clipart