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Composing & Decomposing Numbers (1-10)
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What you will learn from this videoWhat you will learn
- 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!
- Discussion Questions
Before Video
(Hold up 5 fingers.) How many fingers am I holding up?ANSWER5.
5.
ANSWERI counted all of the fingers: 1, 2, 3, 4, 5.
ANSWER7. I counted all the fingers: 1, 2, 3, 4, 5, 6, 7.
7. I counted all the fingers: 1, 2, 3, 4, 5, 6, 7.
After Video
There are 8 dragon fruits. Gavin has 5. How many does Amiyah have?ANSWER5 and 3 make 8, so Amiyah has 3 dragon fruit.
The parts and the whole.
What part is missing from this number bond? How do you know?
ANSWER5. 4 and 5 make 9.
3 and 7 make 10, so 10 is the missing number.
2 and 4 make 6.
- Vocabulary
- Decomposing numbers DEFINE
Breaking a number into two smaller parts.
- Composing numbers DEFINE
Combining two parts of a whole.
- Number Bond DEFINE
A diagram that shows a whole and two parts.
- Total DEFINE
The result of counting.
- Count DEFINE
The find how many items in a group.
- Numbers DEFINE
Symbols used to represent how many.
- Decomposing numbers DEFINE
- Reading Material
- Practice Word Problems
- Practice Number Problems
- Lesson Plan
- Teacher Guide
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Level 1
Draw circles to show 8 in two groups.
Level 2
Complete a number bond for 10.
Level 3
Complete a number bond for 9.
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