One-to-one correspondence
One-to-one correspondence means matching each object to exactly one number when counting, so you never skip or count twice, like touching 4 toy cars one at a time while saying "1, 2, 3, 4" so you end on the true total.
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Midterm
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This final covers a lot of topics, so it's split into 2 parts. Each part includes a question from every one of its topics.
Final, Part 1 of 2
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Final, Part 2 of 2
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