1. Ten ones make one ten Level 1 Module 5
Introduction to Place Value: Tens & Ones

3. © Professor Pete's Classroom. All rights reserved.
Index
Think Bubble Mathematics: Level 1
Module 1
© Professor Pete's Classroom. All rights reserved.

4. Think Bubble Math: Level 1 Overview
Module 1:
240311_TBM101_Intro _Teen_Numbers.pptx
Module 2:
243503_TBM102_Counting _on_back_1_2_3.pptx
Module 3:
243515_TBM103_Add_ Sub_fact_families.pptx
Module 4:
243505_TBM104_Building _to_ten_Rainbow_facts.pptx
Module 5:
240403_TBM105_Tens_ Ones_intro.pptx
© Professor Pete's Classroom. All rights reserved.

5. Think Bubble Math Worksheets:
Many lessons are supported by corresponding worksheets
Purchasers:
Included in zip file for download
Members:
Access via profpete.com in TBM section
Some lessons recommend that students use hands-on materials
243504_TBM102_WS_Counting_on_back_1_2_3
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9. Introduction to Tens and Ones
ACMNA014
Count collections to 100 by partitioning numbers using place value
(c) Professor Pete's Classroom, All rights reserved.

10. Assumed Prior Knowledge
Students should already be able to:
Read and write numbers to 20
Ability to count forwards and backwards to 100 starting at any number or point on the number line
Prior experience bundling ten ones into a ten using bundling sticks and Unifix cubes
(c) Professor Pete's Classroom, All rights reserved.

11. Introducing Tens: Regular Names
Talk about making groups of ten ones
“ty” stands for “ten”
note the similarity in sounds of “ty” and “teen”
Start with the “regularly named” tens which include the single digit name: 60 70 80 90
seven
eight
eigh
nine
six
tens ty 90 70 80 60

12. Introducing Tens: Forty
When we say “forty” we hear the single digit name “four”
The only irregularity is in the spelling:
naughty forty lost its “u”
four
for
tens ty 40

13. Irregular Tens: Twenty, Thirty & Fifty
Lastly, introduce 50, 30 and 20”
The first part does not name the number of tens:
“twen” = 2
“thir” = 3
“fif” = 5
Note the similarities between:
twenty & twelve
thirty & thirteen
fifty & fifteen
five
fif
two
twen
three
thir
tens ty 20 30 50

14. Base Ten Materials 36
This resource includes “unbundling” activities for students to mirror with bundling sticks or Unifix cubes
Base ten blocks should not be used here as they cannot be physically grouped or regrouped

15. The Value of Ungrouping Tens & Ones52
Typically, place value activities involve showing numbers of tens and ones up to 9
Understanding that tens can be ungrouped to make individual ones is essential
fifty-two ones

16. The Value of Ungrouping Tens & Ones
A few “challenge activities” are included for use at the end of this Module, showing mixed tens and once in non-standard configurations
Teacher discretion is needed as to whether students are ready for this stage 26
twenty-six

17. Accompanying Resources
Lesson 2 and 3
Your choice of base ten materials can be used.
Lesson 1, 2, 3 and 4
Print and duplicate as needed. Students can write in their books instead, if preferred.
240404_TBM105_T_Tens_Ones_boxes
(c) Professor Pete's Classroom, All rights reserved.

18. Supporting Resources:
Resources at profpete.com
Gadgets Interactive Software
Tens and Ones Template (accompanying sheet)
Teaching Strategies – Ten and Ones to 99
Bundling Sticks to 99
Unifix Reading Writing 20 to 99
Tens & Ones Place Value: Template Manipulatives
Tens & Ones Place Value: Unifix
Introducing Teen Numbers [PowerPoint TBM 101]
Easy Place Value Gadget:
(c) Professor Pete's Classroom, All rights reserved.

19. Lesson 1: Making groups of ten ones
ACMNA013
Recognise, model, read, write and order numbers to at least Locate these numbers on a number line
(c) Professor Pete's Classroom, All rights reserved.

20. When there are 10 ones, we group them together
Ten Ones make One Ten
How many groups of ten can you see?
“ty” means tens
How many tens?
When there are 10 ones, we group them together
nine tens
ninety 90
Point out the connections between the number of tens and “ty”
“ty” means tens
Have students write the number they see e.g. nine tens is ninety or nine tens is 90

21. 60 six tens sixty Ten Ones make One Ten
How many groups of ten can you see?
six tens
sixty 60
Point out the connections between the number of tens and “ty”
“ty” means tens
Have students write the number they see e.g. six tens is sixty or six tens is 60

22. 80 eight tens eighty Ten Ones make One Ten
How many groups of ten can you see?
eight tens
eighty 80

23. 40 four tens forty Ten Ones make One Ten
How many groups of ten can you see?
four tens
forty 40
Point out the connections between the number of tens and “ty”
“ty” means tens
Naughty “forty” lost its “u”
Have students write the number they see

24. 70 seven tens seventy Ten Ones make One Ten
How many groups of ten can you see?
seven tens
seventy 70

25. 30 three tens thirty Ten Ones make One Ten
How many groups of ten can you see?
three tens
thirty 30
Point out the connections between the number of tens and “ty”
“ty” means tens
“three” changes to “thir”

26. 50 five tens fifty Ten Ones make One Ten
How many groups of ten can you see?
five tens
fifty 50
Point out the connections between the number of tens and “ty”
“ty” means tens
“five” changes to “fif”

27. 20 two tens twenty Ten Ones make One Ten
How many groups of ten can you see?
two tens
twenty 20
Point out the connections between the number of tens and “ty”
“ty” means tens
“two” changes to “twen”
Have students write the number they see

28. 10 one ten ten Ten Ones make One Ten
How many groups of ten can you see?
one ten
ten 10
One ten is just “ten”

29. 90 nine tens ninety ones One Ten is Ten Ones
How many ones in the groups of ten?
nine tens
ninety ones 90
One ten is ten ones
Have students write the number they see – e.g. 90 is nine tens

30. One Ten is Ten Ones
How many ones are here?
six tens
sixty ones 60

31. One Ten is Ten Ones
How many ones here?
four tens
forty ones 40

32. 80 eight tens eighty ones One Ten is Ten Ones
How many ones in eight tens?
eight tens
eighty ones 80

33. 50 five tens fifty ones Ten Ones make One Ten
How many ones in five tens?
five tens
fifty ones 50

34. 70 seven tens seventy ones One Ten is Ten Ones
How many ones in this number?
seven tens
seventy ones 70

35. Ten Ones make One Ten
How many ones here?
nine tens
ninety ones 90

36. One Ten is Ten Ones
How many ones?
two tens
twenty ones 20

37. Lesson 2: Grouping tens and Leftover ones
ACMNA013
Recognise, model, read, write and order numbers to at least Locate these numbers on a number line
(c) Professor Pete's Classroom, All rights reserved.

38. Many numbers have two parts: tens and ones
Ten Ones make One Ten
How many groups of ten can you see?
How many ones are left?
Many numbers have two parts: tens and ones 89
Point out the connections between the number of tens and the digit in the tens place and the ones and the digit in the ones place
Have students write the number they see
eighty
eight tens
-nine
nine ones

39. 62 sixty -two Ten Ones make One Ten
How many groups of ten can you see?
How many altogether? 62
Have students write the number they see
Say the number
sixty
-two

40. 45 forty -five Ten Ones make One Ten
How many groups of ten can you see?
How many ones are left? 45
forty
-five

41. 53 fifty-three One Ten is Ten Ones How many groups of ten can you see?
How many marbles altogether? 53
fifty-three

42. 61 sixty-one Ten Ones make One Ten How many groups of ten can you see?
How many sticks altogether? 61
sixty-one

43. 14 fourteen Ten Ones make One Ten How many groups of ten can you see?
How many blocks altogether? 14
fourteen

44. 96 ninety-six One Ten is Ten Ones How many groups of ten can you see?
How many marbles altogether? 96
ninety-six

45. 34 thirty-four Ten Ones make One Ten
How many groups of ten can you see?
How many sticks altogether? 34
thirty-four

46. Show these Numbers 15 36 74
Show the number as tens and ones with your base ten resources
Unbundle them
Count them
Check the number of ones is the same as the number
Hand out base ten resources
Have students show the number, say it and write it.
Have students unbundle the resources and check there are still the same number

47. Lesson 3: Regrouping tens and ones into ones
ACMNA013
Recognise, model, read, write and order numbers to at least Locate these numbers on a number line
(c) Professor Pete's Classroom, All rights reserved.

48. A group of 10 can be “ungrouped” back into ones
One Ten is Ten Ones
What number is shown here?
If we unbundle all the tens, how many ones are there altogether?
A group of 10 can be “ungrouped” back into ones 52
One ten is ten ones
Five tens is fifty ones plus the single ones
fifty-two ones

49. 65 sixty-five ones One Ten is Ten Ones What number is shown here?
If we unbundle all the tens, how many ones are there altogether? 65
sixty-five ones

50. 41 forty-one ones One Ten is Ten Ones What number is shown here?
If we unbundle all the tens, how many ones are there altogether? 41
forty-one ones

51. 36 thirty-six ones Ten Ones make One Ten What number is shown here?
If we unbundle all the tens, how many ones are there altogether? 36
thirty-six ones

52. 76 seventy-six ones One Ten is Ten Ones What number is shown here?
If we unbundle all the tens, how many ones are there altogether? 76
seventy-six ones

53. Show these Numbers 17 28 32
Show the number as tens and ones with your base ten resources
Unbundle them
Count them
Check the number of ones is the same as the number
Hand out base ten resources
Have students show the number and say it and write it.
Have students unbundle them and check they are still the same

54. Lesson 4: Tens and ones Revision
ACMNA013
Recognise, model, read, write and order numbers to at least Locate these numbers on a number line
(c) Professor Pete's Classroom, All rights reserved.

55. Practise grouping and ungrouping tens
One Ten is Ten Ones
What number is shown here?
If we unbundle all the tens, how many ones are there altogether?
Practise grouping and ungrouping tens 32
One ten is ten ones
Three tens is thirty ones plus the single ones
thirty-two ones

56. 56 fifty-six ones One Ten is Ten Ones What number is shown here?
If we unbundle all the tens, how many ones are there altogether? 56
fifty-six ones

57. Ten Ones make One Ten
What number is shown here? 18
eighteen

58. One Ten is Ten Ones
What number is shown here? 72
seventy-two

59. Ten Ones make One Ten
What number is shown here? 36
thirty-six

60. One Ten is Ten Ones
What number is shown here? 46
forty-six

61. What Number is Shown Here?
Write the number of sticks A 6 15 51 60 5 B C D
Ask students to write the letter which matches the correct answer E

62. What Number is Shown Here?
Write the number of blocks A 42 22 24 21 12 B C D E

63. Challenge Question - Ten Ones make One Ten
Write the number of blocks 68
Challenge activity:
The number stays the same even if just one ten is ungrouped
Have students write the number they see
Say the number
sixty-eight

64. Challenge Question - One Ten is Ten Ones
Write the number of marbles 75
seventy-five

65. Challenge Question - Ten Ones make One Ten
Write the number of sticks 26
twenty-six

66. 46 One Ten is Ten Ones 4 tens and 6 ones 3 tens and 16 ones
Say the number
How many ones and tens are there?
4 tens and 6 ones
3 tens and 16 ones
2 tens and 26 ones
1 ten and 36 ones
0 tens and 46 ones