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Composing & Decomposing Numbers (1-10)
- Show lesson plan & teacher guide
- Show answers to discussion questions
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- How to break apart numbers up to 10.
- How to combine numbers together to make greater numbers!
- How we can use this knowledge to help us share dragon fruit, decorate a gingerbread house, and even make groovy artwork!
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Discussion Questions
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Before Video(Hold up 5 fingers.) How many fingers am I holding up?ANSWER
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5.
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5.
ANSWER-
I counted all of the fingers: 1, 2, 3, 4, 5.
ANSWER-
7. I counted all the fingers: 1, 2, 3, 4, 5, 6, 7.
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7. I counted all the fingers: 1, 2, 3, 4, 5, 6, 7.
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After VideoThere are 8 dragon fruits. Gavin has 5. How many does Amiyah have?ANSWER
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5 and 3 make 8, so Amiyah has 3 dragon fruit.
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The parts and the whole.
What part is missing from this number bond? How do you know?
ANSWER-
5. 4 and 5 make 9.
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3 and 7 make 10, so 10 is the missing number.
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2 and 4 make 6.
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Vocabulary
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Decomposing numbers
DEFINE
Breaking a number into two smaller parts.
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Composing numbers
DEFINE
Combining two parts of a whole.
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Number Bond
DEFINE
A diagram that shows a whole and two parts.
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Total
DEFINE
The result of counting.
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Count
DEFINE
The find how many items in a group.
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Numbers
DEFINE
Symbols used to represent how many.
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Decomposing numbers
DEFINE
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Reading Material
Download as PDF Download PDF View as Separate PageWHAT ARE COMPOSING & DECOMPOSING NUMBERS (1-10)?You will learn that whole numbers can be put together to compose a greater number. Whole numbers can also be broken apart to decompose into two lesser numbers!
To better understand composing & decomposing numbers…
WHAT ARE COMPOSING & DECOMPOSING NUMBERS (1-10)?. You will learn that whole numbers can be put together to compose a greater number. Whole numbers can also be broken apart to decompose into two lesser numbers! To better understand composing & decomposing numbers…LET’S BREAK IT DOWN!
Decompose a number
Decomposing a number means taking a whole number and breaking it into two smaller parts. To decompose the number 5, you can break it into smaller parts of 4 and 1, or 3 and 2.
Decompose a number Decomposing a number means taking a whole number and breaking it into two smaller parts. To decompose the number 5, you can break it into smaller parts of 4 and 1, or 3 and 2.Use a number bond to show parts.
A number bond is a tool you can use to show parts of a whole. A number bond has one circle on top and two circles on the bottom. The top number shows the whole. The bottom numbers show the parts.
Use a number bond to show parts. A number bond is a tool you can use to show parts of a whole. A number bond has one circle on top and two circles on the bottom. The top number shows the whole. The bottom numbers show the parts.Decompose 8 using a number bond.
To show 8 in a number bond, put 8 in the top circle. Then the parts go in the lower circles. 2 and 6 make 8. 2 and 6 can go in the lower circles.
Decompose 8 using a number bond. To show 8 in a number bond, put 8 in the top circle. Then the parts go in the lower circles. 2 and 6 make 8. 2 and 6 can go in the lower circles.Compose a number.
Composing a number means taking two lesser numbers and combining them to make a greater whole number. A group of 4 and a group of 2 make 6.
Compose a number. Composing a number means taking two lesser numbers and combining them to make a greater whole number. A group of 4 and a group of 2 make 6.Compose 9 using a number bond.
9 goes in the top circle. 6 and 3 make 9 so the numbers 6 and 3 can go in the lower circles. You can say 6 and 3 make 9 OR 3 and 6 make 9.
Compose 9 using a number bond. 9 goes in the top circle. 6 and 3 make 9 so the numbers 6 and 3 can go in the lower circles. You can say 6 and 3 make 9 OR 3 and 6 make 9. -
Practice Word Problems
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Practice Number Problems
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Draw circles to show 8 in two groups.
Complete a number bond for 10.
Complete a number bond for 9.
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