1. Number lines help to understand numbers
Level 2 Module 4
Using Number Lines With
Numbers to 1000

3. © Professor Pete's Classroom. All rights reserved.
Index
Think Bubble Mathematics: Level 2
Module 4
© Professor Pete's Classroom. All rights reserved.

4. Think Bubble Math: Level 2 Overview
Module 1:
240420_TBM201_Tens_Ones _regrouping.pptx
Module 2:
240503_TBM202_Hundreds _introduced.pptx
Module 3:
243501_TBM203_Doubling _halving_to_20.pptx
Module 4:
240515_TBM204_Hundreds _on_NL.pptx
Module 5:
242720_TBM205_Bridging _10_open_NL.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
© Professor Pete's Classroom. All rights reserved.

6. Navigating in Think Bubble Math on a Computer
Return to Index
Go to other slide:
Right-click screen, click “See All Slides”
Navigate forward & back: click right & left arrows
Start presentation:
Double-click file name or icon
© Professor Pete's Classroom. All rights reserved.

7. Using Think Bubble Math on a Tablet or Phone
Download free PowerPoint app in iTunes or Google Play:
iPhone or iPad:
Android:
Save Think Bubble file to your device
You may find it helps to install Microsoft OneDrive, to save and find files
If you see a warning about “unsupported content”, you can safely ignore it
We include special fonts to improve the presentation’s appearance
© Professor Pete's Classroom. All rights reserved.

8. Navigating in Think Bubble Math on a Tablet or Phone
Start presentation:
click “play” button in top bar
Navigate to other slide:
rotate device to portrait, click slide thumbnail at bottom of screen
Navigate forward & back: swipe left & right
© Professor Pete's Classroom. All rights reserved.

9. Hundreds on a Number Line
ACMNA026
Investigate number sequences…
ACMNA027
Recognise, model, represent and order numbers to at least 1000
(c) Professor Pete's Classroom, All rights reserved.

10. Assumed Prior Knowledge
Students should already:
have had lots of practice grouping and ungrouping base ten resources such as Unifix cubes and bundling sticks
have counted with base ten materials, grouping and ungrouping ten as they go
be able to read and write numbers to 99 based on the materials they see
be familiar with number lines, including of varying scales such as counting by 1, 2, 5 and 10
(c) Professor Pete's Classroom, All rights reserved.

11. Locating Numbers on a Number Line18
When locating numbers on number lines it is important to note the scale of the line.
Lesson 1 has a scale of numbers to 100 within a decade
Lesson 2 has a scale from
Lesson 3 has a scale from
Lesson 4 has a mixture of scales 90
320
(c) Professor Pete's Classroom, All rights reserved.

12. Locating Numbers on a Number Line
Students can draw their own blank number lines
Or a sheet can be printed off with the blank number lines
Students will need to write the two numbers on the lines. This helps them establish the scale.
Teacher discretion is needed for some exercises as complete accuracy is not expected. A close approximation is all that can be achieved. 92
100
(c) Professor Pete's Classroom, All rights reserved.

13. Accompanying worksheets for Printing
Lesson 1
Duplicate one per student (optional)
Students can draw their own blank number lines
Lesson 2, 3, 4
Duplicate one per student as required (optional)
Students can draw their own blank number lines
Both worksheets are in this file
240516_TBM204_blank_number_lines
(c) Professor Pete's Classroom, All rights reserved.

14. Supporting Resources:
Resources at profpete.com
Gadgets Interactive Software
Blank Open Number Lines (accompanying worksheet - optional)
Teaching Strategies Hundreds, Tens & Ones Place Value Introduction
Lesson 1: Introducing Hundreds with Bundling Sticks
Lesson 2: Expanding Hundreds, Tens, Ones with Bundling Sticks
Lesson 3: Expanding Hundreds, Tens and Ones with Base Ten Blocks
Lesson 4: 1 Hundred is 10 Tens, 100 Ones Bundling Sticks
Lesson 5: 482 is 48 tens 2 ones; 482 ones Bundling Sticks
Lesson 6: 1 Hundred is 10 Tens, 100 Ones Base Ten Blocks
Lesson 7: 371 is 37 tens 1 ones; 371 ones Base Ten Blocks
Hundreds, Tens & Ones Place Value: Manipulatives Templates
Hundreds, Tens & Ones Place Value: Bundling Sticks
Hundreds, Tens & Ones Place Value: Base Ten Blocks
Hundreds, Tens & Ones Place Value: Objects FREE
Hundreds, Tens & Ones Place Value: Abacus
Hundreds, Tens & Ones Place Value: Chart
Template: Teacher Set of Base Ten Blocks
Hundreds Place Expanded [PowerPoint TBM202]
Scrolling Hundred Board
Number Expander Gadget:
(c) Professor Pete's Classroom, All rights reserved.

15. Lesson 1: Locating a number between two tens
ACMNA026
Investigate number sequences...
ACMNA027
Recognise, model, represent and order numbers to at least 1000
optional
(c) Professor Pete's Classroom, All rights reserved.

16. Number Located Within its Decade
Have student draw several blank number lines on their page with the two markers
They will need 8 number lines for lesson one
There is a number line worksheet for you to duplicate if you prefer
As you progress through the slides they will need to write the two numbers that show the decade between which the number will lie
Draw this number line on your page, placing two markers on it.

17. Number Located Within its Decade
Have students write the numbers shown underneath their first number line
Ask students to place a mark on a number line where this number is located
Have a student come to the board and mark or point to the position, and explain their choice
Discuss the position chosen
Click to reveal a more detailed number line
Click to remove detailed number lines to reveal its position in relation to the tens either side of it
Where is this number located on the number line?
Number lines show numbers in their order 55 55

18. Number Located Within its Decade
Ask students to place a mark on the next number line where the number is located
Have a student come to the board and mark or point to the position, and explain their choice
Where is this number located on the number line? 32 32

19. Number Located Within its Decade
Where is this number located on the number line? 12 12

20. Number Located Within its Decade
Where is this number located on the number line? 69 69

21. Number Located Within its Decade
Where is this number located on the number line? 91 91

22. Numbers to 100
Ask students to guess which arrow best matches the given number
Click to reveal a more detailed number line
Discuss why certain answers cannot be right
Click to reveal the answer
Which of these arrows best marks the position for this number? 45 A B C D

23. Numbers to 100
Ask students to guess which arrow best matches the given number
Click to reveal a more detailed number line
Discuss
Which of these arrows best marks the position for this number? 99 A B C D

24. Numbers to 100
Ask students to write a number that is close to the point indicated by the arrow
Click to reveal a more detailed number line
Be a little flexible with marking their answers and allow students to adjust their thinking and accuracy
Write a number that is close to the point indicated by the arrow 58

25. Numbers to 100
Write a number that is close to the point indicated by the arrow 19

26. Numbers to 100
Write a number that is close to the point indicated by the arrow 86

27. Lesson 2: Locating a number on a number line to 100
ACMNA026
Investigate number sequences...
ACMNA027
Recognise, model, represent and order numbers to at least 1000
optional
(c) Professor Pete's Classroom, All rights reserved.

28. Number Located up to 100
Have student draw several blank number lines on their page with the two markers
They will need 8 number lines for lesson two
There is a number line worksheet for you to duplicate if you prefer
As you progress through the slides they will need to write the two numbers that show the 0 and 100 marks between which the number will lie
Draw this number line on your page, placing two markers on it.

29. All the numbers 0 to 100 are found on this number line
Ask students to place a mark on a number line that is where they think the number is located
Have a student come to the board and mark or point to where they think it is located
Discuss position chosen (use teacher discretion for accuracy expected)
Click arrow to reveal a more detailed number line
Discuss the number’s position in relation to 50, the halfway point
Click to remove detailed number lines to reveal its position in relation to numbers 0 to 100
Where is this number located on the number line?
All the numbers 0 to 100 are found on this number line 46 46

30. 61 61 Numbers to 100 Where is this number located on the number line?
Ask students to place a mark on a number line that is where they think the number is located
Have a student come to the board and mark or point to where they think it is located
Where is this number located on the number line? 61 61

31. Numbers to 100
Where is this number located on the number line? 15 15

32. Numbers to 100
Where is this number located on the number line? 73 73

33. Numbers to 100
Where is this number located on the number line? 89 89

34. Numbers to 100
Where is this number located on the number line? 11 11

35. Numbers to 100
Where is this number located on the number line? 2 2

36. Numbers to 100
Where is this number located on the number line? 98 98

37. Numbers to 100
Ask students to guess which arrow best matches the given number
Click to reveal a more detailed number line
Discuss why certain answers cannot be right
Click to reveal answer
Which of these arrows best marks the position for this number? 21 A B C D

38. Numbers to 100
Which of these arrows best marks the position for this number? 59 A B C D

39. Numbers to 100
Which of these arrows best marks the position for this number? 11 A B C D

40. Numbers to 100
Ask students to write which one of the numbers is closest to the point indicated by the arrow
Click to reveal a more detailed number line
Discuss answers written by students, why some can’t be right
Select the number that you think is closest to the position of the arrow A B C D 8 18 25 12

41. Numbers to 100
Select the number that you think is closest to the position of the arrow A B C D 29 19 99 9

42. Numbers to 100
Select the number that you think is closest to the position of the arrow A B C D 15 48 52 25

43. Numbers to 100
Select the number that you think is closest to the position of the arrow A B C D 29 82 92 98

44. Lesson 3: Locating numbers on a number line to 1000
ACMNA026
Investigate number sequences...
ACMNA027
Recognise, model, represent and order numbers to at least 1000
optional
(c) Professor Pete's Classroom, All rights reserved.

45. Number Located up to 1000
Have student draw several blank number lines on their page with the two markers
They will need 8 number lines for lesson three
There is a number line worksheet for you to duplicate if you prefer
As you progress through the slides they will need to write the two numbers that show the 0 and 1000 marks between which the number will lie
Draw this number line on your page, placing two markers on it.

46. All the numbers 0 to 1000 are found on this number line
Ask students to place a mark on a number line that is where they think the number is located
Have a student come to the board and mark or point to where they think it is located
Discuss position chosen (be flexible in accuracy expected)
Click arrow to reveal a more detailed number line if needed
Click to remove detailed number lines to reveal its position in relation to numbers either side of it
Where is this number located on the number line?
All the numbers 0 to 1000 are found on this number line
510
510

47. Numbers to 1000
Ask students to place a mark on a number line that is where they think the number is located
Have a student come to the board and mark or point to where they think it is located
Discuss
Where is this number located on the number line?
699
699

48. Numbers to 1000
Ask students to place a mark on a number line that is where they think the number is located
Have a student come to the board and mark or point to where they think it is located
Discuss
Where is this number located on the number line?
805
805

49. Numbers to 1000
Where is this number located on the number line?
375
375

50. Numbers to 1000
Where is this number located on the number line?
109
109

51. Numbers to 1000
Where is this number located on the number line? 50 50

52. Numbers to 1000
Where is this number located on the number line?
990
990

53. Numbers to 1000
Where is this number located on the number line? 9 9

54. Numbers to 1000
Ask students to write which one of the numbers is closest to the point indicated by the arrow
Click to reveal a more detailed number line
Discuss answers written by students, why some can’t be right
Which of these arrows best marks the position for this number?
619 A B C D

55. Numbers to 1000
Which of these arrows best marks the position for this number?
691 A B C D

56. Numbers to 1000
Which of these arrows best marks the position for this number?
190 A B C D

57. Numbers to 1000
Which of these arrows best marks the position for this number?
479 A B C D

58. Numbers to 100
Ask students to write which of these numbers is approximately in the position of the arrow
Click arrow to reveal a more detailed number line
Discuss answers written by students, why some are better than others and some can’t be right
Which of these numbers is closest to the position on the number line? A B C D
709
907
599
800

59. Numbers to 100
Which of these numbers is closest to the position on the number line? A B C D
690
609
906
960

60. Numbers to 100
Which of these numbers is closest to the position on the number line? A B C D
309
390
430
490

61. Lesson 4: Locating numbers on a number line – check the scale
ACMNA026
Investigate number sequences...
ACMNA027
Recognise, model, represent and order numbers to at least 1000
optional
(c) Professor Pete's Classroom, All rights reserved.

62. Numbers Located on Number Lines
Have student draw several blank number lines on their page with the two markers
They will need 8 number lines for lesson four
There is a number line worksheet for you to duplicate if you prefer
As you progress through the slides they will need to write the two numbers that show the 0 and 1000 marks between which the number will lie
Draw this number line on your page, placing two markers on it.

63. Note the start and end numbers before beginning
Locate Number
Have students write the two numbers on the ends of the number
Note the scale on the number line
Ask students to place a mark on a number line that is where they think the number is located
Have a student come to the board and mark or point to where they think it is located
Where is this number located on the number line?
Note the start and end numbers before beginning 21 21

64. Locate Number
Where is this number located on the number line? Note the scale on the line 8 8

65. Locate Number
Where is this number located on the number line? Note the scale on the line 8 8

66. Locate Number
Where is this number located on the number line?
599
599

67. Locate Number
Where is this number located on the number line?
808
808

68. Locate Number
Where is this number located on the number line?
375
375

69. Locate Number
Where is this number located on the number line? Note the scale on the line 95 95

70. Locate Number
Where is this number located on the number line? 5 5

71. Locate Number
Ask students to guess which arrow best matches the given number
Click to reveal a more detailed number line
Discuss why certain answers cannot be right
Which of these arrows best marks the position for this number? 52 A B C D

72. Locate Number
Ask students to write a number that is approximately in this position
Answers may vary and teacher discretion is advised in marking students responses
Click arrow to reveal a more detailed number line
Discuss
Which of these numbers is closest to the position of the arrow on the number line? A B C D
709
797
598
900

73. Locate Number
Ask students to write which one of the numbers is closest to the point indicated by the arrow
Click to reveal a more detailed number line
Discuss
Select the number that you think is closest to the position of the arrow A B C D 8 18 25 12

74. Locate Number
Ask students to write which one of the numbers is closest to the point indicated by the arrow
Click to reveal a more detailed number line
Discuss
Which of these arrows best marks the position for this number? 90 A B C D

75. Locate Number
Ask students to write which one of the numbers is closest to the point indicated by the arrow
Click to reveal a more detailed number line
Discuss
Which of these arrows best marks the position for this number?
585 A B C D