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Lets Make a Deal!Mike and his little brother, Andy, are headed for the Disaur Card Trading Fair. They're ready to wheel and deal. It's, 4 Stegosaurus for 1 Triceratops, and 2 Triceratops for 1 Allosaurus. But can they get what they really want: the tremendous, gigantic, ferocious, Tyransaurus rex The math concept of equivalency - understanding when values are equal - is introduced in this fast-paced story as two brothers try to beat the clock and make the ultimate trade.
Stuart J. Murphy is a visual learning specialist. A graduate of the Rhode Island School of Design, he has a strong background in design and art direction. He also has extensive experience in the world of educational publishing. Drawing on all these talents, Stuart J. Murphy brings a unique perspective to the MathStart series. In MathStart books, pictures do more than tell stories; they teach math. Stuart J. Murphy and his wife, Nancy, live in Boston. Kevin O'Malley has illustrated many entertaining books for children, including Too Many Kangaroo Things to Do! By Stuart J. Murphy, Cinder Edna by Ellen Jackson, and his own Carl Caught a Flying Fish. Kevin O'Malley lives in Baltimore, Maryland. Heather Henson was born and raised in Kentucky and later moved to New York City, where she studied creative writing at the New School University and at City College/City University of New York. She has worked as an editor of books for young readers and as a freelance writer. Her short stories have appeared in the literary journal Promethean. She now lives in Brooklyn, New York, with her husband and son. This is her first novel.