Today in math, we learned about number bonds.

1. Number Bonds to 20
M1S1U1
Number Bonds Within 20

2. Hook:

17. Hook:

18. Persisting
Habit Of Mind:

19. Persisting means not giving up
until something good happens.
Habit Of Mind:

20. I will not give up on problems.
I will think positive thoughts.
I will do my best to find
answers.
How do I become persisting?
1.
2.
3.
Habit Of Mind Statements:

21. How do I solve
problems correctly?
What do I do
when I’m stuck?
Essential Question:

22. What do I do when I have a problem?
Essential Question Thoughts:

23. Pretest:
Instructions:
Complete the number bonds by
finding the missing numbers.

24. 1.
2.
3. 5.
4.
10 10 12
9 10
+ + -
- +
4 8 16
1
13

25. A. Whole numbers
Whole numbers are basic numbers.
They are also called counting
numbers.
Topic 1: Words to understand

26. B. Number bonds
Number bonds have two numbers
that make a whole number.
Topic 1: Words to understand

27. C. Sum
Sum is the answer in addition.
Topic 1: Words to understand

28. C. Difference
Difference is the answer in
subtraction.
Topic 1: Words to understand

29. A sum could be a whole number. A sum
could be made when two numbers bond.
Topic 2: Number Bonds to Make 10

30. 1.
2.
3. 5.
4.
10 10
10
+ +
+
4 8
1
10
+
5
10
3
6 2
9
+ 7
5
whole whole whole
whole whole
part part part part part
part
part part part part

31. Teaching Strategy:
How do you get the sum when one
number is missing?
One number in my mind, and I start
counting forward with my fingers until I
get the sum. The number in my fingers
is the missing number.
Topic 2: Number Bonds to Make 10

32. 10
+
4 6
4 + 6 = 10

33. 10
+
7 3
7 + 3 = 10

34. Practice:
Topic 2: Number Bonds to Make 10

35. Practice:
Topic 2: Number Bonds to Make 10
7
+ =
+ = 10

36. Practice:
Topic 2: Number Bonds to Make 10
7
+ =
+ = 10
3

37. Practice:
Topic 2: Number Bonds to Make 10
8
+ =
+ = 10

38. Practice:
Topic 2: Number Bonds to Make 10
8
+ =
+ = 10
2

39. 10
Practice:
Topic 2: Number Bonds to Make 10
1
+ =
+ =

40. 10
Practice:
Topic 2: Number Bonds to Make 10
1
+ =
+ =
9

41. 10
Practice:
Topic 2: Number Bonds to Make 10
4
+ =
+ =

42. 10
Practice:
Topic 2: Number Bonds to Make 10
4
+ =
+ =
6

43. 10
Practice:
Topic 2: Number Bonds to Make 10
5
+ =
+ =

44. 10
Practice:
Topic 2: Number Bonds to Make 10
5
+ =
+ =
5

45. A sum could be a whole number. A sum
could be made when two numbers
bond.
Topic 3: Number Bonds to Make 20

46. 1.
2.
3. 5.
4.
20
+ +
+
14 18
11
+
5
3
6 2
9
+ 17
15
whole whole whole
whole whole
part part part part part
part
part part part part
20
20 20
20

47. Teaching strategy:
How do you get the sum when one
number is missing?
One number in my mind, and I start
counting forward with my fingers
until I get the sum. The number in my
fingers is the missing number.
Topic 3: Number Bonds to Make 20

48. 20
+
14 6
14 + 6 = 20

49. 20
+
13 13
13 + 7 = 20

50. Practice:
Topic 3: Number Bonds to Make 20

51. Practice:
Topic 3: Number Bonds to Make 20
16
+ =
+ = 20

52. Practice:
Topic 3: Number Bonds to Make 20
16
+ =
+ = 20
4

53. Practice:
20
Topic 3: Number Bonds to Make 20
12
+ =
+ =

54. Practice:
20
Topic 3: Number Bonds to Make 20
12
+ =
+ =
8

55. 10
Practice:
20
Topic 3: Number Bonds to Make 20
+ =
+ =

56. 10
Practice:
20
Topic 3: Number Bonds to Make 20
+ =
+ =
10

57. =
17
Practice:
20
Topic 3: Number Bonds to Make 20
+
+ =

58. =
17
Practice:
20
Topic 3: Number Bonds to Make 20
+
+ =
3

59. =
Practice:
20
Topic 3: Number Bonds to Make 20
+
+ =
15

60. =
5
Practice:
20
Topic 3: Number Bonds to Make 20
+
+ =
15

61. =
13
Practice:
20
Topic 3: Number Bonds to Make 20
+
+ =

62. =
13
Practice:
20
Topic 3: Number Bonds to Make 20
+
+ =
7

63. A difference could be a whole number.
A difference could be made when a
smaller number is taken away from a
bigger number.
Topic 4: Number Bonds Within 10

64. 1.
2.
3. 5.
4.
6
- -
-
8 10
9
-
9
8
2 5
2
- 4
5
whole whole whole
whole whole
part part part part part
part
part part part part
4
5 4
7

65. Teaching strategy:
How do you get the difference when
one number is missing?
One number in my mind, and start
counting backward with my fingers
until I get the difference. The
number in my fingers is the missing
number.
Topic 4: Number Bonds Within 10

66. 6
-
10 4
10 - 4 = 6

67. 8
-
10 2
10 - 2 = 8

68. Practice:
Topic 4: Number Bonds Within 10

69. Practice:
Topic 4: Number Bonds Within 10
10
- =
- = 6

70. Practice:
Topic 4: Number Bonds Within 10
10
- =
- = 6
4

71. Practice:
Topic 4: Number Bonds Within 10
9
- =
- = 6

72. Practice:
Topic 4: Number Bonds Within 10
9
- =
- = 6
3

73. =
Practice:
Topic 4: Number Bonds Within 10
10
-
- = 8

74. =
Practice:
Topic 4: Number Bonds Within 10
10
-
- = 8
2

75. =
Practice:
Topic 4: Number Bonds Within 10
9
-
- = 8

76. =
Practice:
Topic 4: Number Bonds Within 10
9
-
- = 8
1

77. =
Practice:
Topic 4: Number Bonds Within 10
10
-
- = 7

78. =
Practice:
Topic 4: Number Bonds Within 10
10
-
- = 7
3

79. A difference could be a whole number.
A difference could be made when a
smaller number is taken away from a
bigger number.
Topic 5: Number Bonds Within 20

80. 1.
2.
3. 5.
4.
12
- -
-
14 18
16
-
15
19
2 7
2
- 3
2
whole whole whole
whole whole
part part part part part
part
part part part part
13
11 16
14

81. Teaching strategy:
How do you get the difference when
one number is missing?
One number in my mind, and start
counting backward with my fingers
until I get the difference. The number
in my fingers is the missing number.
Topic 5: Number Bonds Within 20

82. Practice:
Topic 5: Number Bonds Within 20

83. Practice:
Topic 5: Number Bonds Within 20
20
- =
- = 12

84. Practice:
Topic 5: Number Bonds Within 20
20
- =
- = 12
8

85. =
Practice:
Topic 5: Number Bonds Within 20
20
-
- = 13

86. =
Practice:
Topic 5: Number Bonds Within 20
20
-
- = 13
7

87. =
Practice:
Topic 5: Number Bonds Within 20
18
-
- = 15

88. =
Practice:
Topic 5: Number Bonds Within 20
18
-
- = 15
3

89. =
Practice:
Topic 5: Number Bonds Within 20
17
-
- = 12

90. =
Practice:
Topic 5: Number Bonds Within 20
17
-
- = 12
5

91. Post Test:
Instructions:
Complete the number bonds by finding
the missing numbers. Persist in using
the "number bonds" math strategies
that you have learned.

92. 1. 2. 3.
4. 5. 6.
10 10
10
6
8 3
7 2
4
10 7
9
+ +
+
-
- -
Post Test:

93. 7. 8. 9.
11. 12. 13.
20 20
12
16
20 20
12 18
15
14 15
19
+ +
-
-
+ +
10.
14
16 -
14.
15
18 -
Post Test:

94. THE END