Number Bonds
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Ways to represent Number Bonds:
Concrete
Quantity and value
Whole-part relationships
Ten as an anchor number
Foundational for mental math skills
Compose and decompose numbers
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Work mat with counters
Plastic plate & cup with counters
Pipe cleaner, beads, & label
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Ten Frames & counters
Representational
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Introducing number bonds
Work mat template or plastic plate with
numbers
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(with manipulatives)
Stories representing the number
relationships
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Number bond triangles with dots drawn
in center
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Ten Frames & drawing or stamping
circles
Abstract
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Model drawn with “branches” and circle
to make a 10
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Number bond triangles with just
numbers
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Equations
Create addition and subtraction stories.
Instead of “fact families”, “Story of 4”
4 and _____ make 4.
4
3 and _____ make 4.
2 and _____ make 4.
1 and _____ make 4.
Addition and Subtraction within 10 and 20
Journey of a Number Bond
8+5
14 oz. + 7 oz.
38 + 7
292 + 119
45 min. + 35 min.
2,389 + 35
2+2
3
3
Math Talk
Have you seen any good math lately?
What do you notice?
Is that true? Who can prove it?
When you move from concrete to paper, ask, how is this like what we just did?
How many? What’s the value?
Can you see (addition, subtraction, etc.)?
Can you name what you see in this picture?
Are there some things we can count one-by-one? By 2s?
What is largest? Smallest?
How many in all? What are “part” of them doing?
Can you make up a math story from this picture?
Take-aways for my classroom…