The five members of the Jones family (Mama, Papa, and their three kids Bryce, Caleb, and Abby) and their five dogs (each family member owned one of the dogs) were hiking when they came to a river they wanted to cross. They found a boat nearby that could hold three living things. But the dogs were edgy: none of them could bear to be around another person, not even briefly unless its owner was also present. If a dog saw any other person nearby and could not see its owner, it would bark furiously! Curiously, the dogs did not mind being alone with each other, as long as no people were present. Every person could operate the boat and, fortunately, Abby’s dog had attended a marine-based obedience school and could also operate the boat. No other dogs were so well educated. Using manipulatives to plan their strategy, the family was able to get everyone across in 13 trips. How did they do it?
The five members of the Jones family (Mama, Papa, and their three kids Bryce, Caleb, and Abby) and their five dogs (each family member owned one of the dogs) were hiking when they came to a river they wanted to cross. They found a boat nearby that could hold three living things. But the dogs were edgy: none of them could bear to be around another person, not even briefly unless its owner was also present. If a dog saw any other person nearby and could not see its owner, it would bark furiously! Curiously, the dogs did not mind being alone with each other, as long as no people were present. Every person could operate the boat and, fortunately, Abby’s dog had attended a marine-based obedience school and could also operate the boat. No other dogs were so well educated. Using manipulatives to plan their strategy, the family was able to get everyone across in 13 trips. How did they do it?
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