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1-2 of 2 results for "invention"
Written by John Coy
What can you do with a bunch of rowdy college boys in the winter when it’s cold outside? John...
2nd - 6th
Written by Jean Merrill
Set in 1960's Cleveland, Ohio, follow 6th-grader Rufus Mayflower as he and his friends use real-life mathematical problems to help their budding business making toothpaste succeed.