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Concept explainers
Enough underwear. When Deb packs for a trip, she doesn’t count the number of days she will be away and then count out that many pairs of underwear. Instead, she places underwear into her suitcase, one at a time, and says the name of each day she will be away: “Monday” (and places one in), “Thesday” (and places another in), “Wednesday,” etc. Using this method, does Deb know the number of underwear she placed in her bag? Does she have enough underwear for her trip? Discuss the connection this true story has with the notion of a one-to-one correspondence.
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Chapter 3 Solutions
EBK THE HEART OF MATHEMATICS: AN INVITA
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