This worksheet focuses on the concept of
one-to-one correspondence, which is a foundational math skill where each item in one group is matched with exactly one item in another group. Let's solve each part step by step:
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1. Which group of ice creams belong to the children? Explain why.
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Number of children: There are 4 children.
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Groups of ice creams:
- First group: 5 ice creams
- Second group: 3 ice creams
- Third group: 4 ice creams
To determine which group belongs to the children, we need to match each child with one ice cream. Since there are 4 children, the correct group must have exactly 4 ice creams.
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Correct answer: The third group (4 ice creams).
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Explanation: Each child can be paired with one ice cream, and there will be no extra ice creams or children left unmatched.
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2. Which group of carrots belong to the rabbits? Explain why.
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Number of rabbits: There are 5 rabbits.
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Groups of carrots:
- First group: 6 carrots
- Second group: 7 carrots
- Third group: 5 carrots
To determine which group belongs to the rabbits, we need to match each rabbit with one carrot. Since there are 5 rabbits, the correct group must have exactly 5 carrots.
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Correct answer: The third group (5 carrots).
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Explanation: Each rabbit can be paired with one carrot, and there will be no extra carrots or rabbits left unmatched.
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3. Which group of hats belong to the children? Explain why.
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Number of children: There are 5 children.
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Groups of hats:
- First group: 4 hats
- Second group: 5 hats
- Third group: 6 hats
To determine which group belongs to the children, we need to match each child with one hat. Since there are 5 children, the correct group must have exactly 5 hats.
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Correct answer: The second group (5 hats).
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Explanation: Each child can be paired with one hat, and there will be no extra hats or children left unmatched.
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4. Which group of cheese belong to the mice? Explain why.
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Number of mice: There are 6 mice.
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Groups of cheese:
- First group: 6 pieces of cheese
- Second group: 7 pieces of cheese
- Third group: 8 pieces of cheese
To determine which group belongs to the mice, we need to match each mouse with one piece of cheese. Since there are 6 mice, the correct group must have exactly 6 pieces of cheese.
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Correct answer: The first group (6 pieces of cheese).
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Explanation: Each mouse can be paired with one piece of cheese, and there will be no extra cheese or mice left unmatched.
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Final Answers:
1. Ice creams:
Third group (4 ice creams)
2. Carrots:
Third group (5 carrots)
3. Hats:
Second group (5 hats)
4. Cheese:
First group (6 pieces of cheese)
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Explanation of One-to-One Correspondence:
One-to-one correspondence involves matching items from two groups such that each item in one group is paired with exactly one item in the other group. This ensures that there are no leftovers in either group. By counting the number of items in each group and ensuring they match, we can correctly assign the items.
Final Answer Boxed:
\[
\boxed{
\text{1. Third group (4 ice creams), 2. Third group (5 carrots), 3. Second group (5 hats), 4. First group (6 pieces of cheese)}
}
\]
Parent Tip: Review the logic above to help your child master the concept of one to one correspondence worksheets.
