# Dinosaur Deals: Equivalent Values (MathStart 3 Series)

Lets Make a Deal!

Mike and his little brother, Andy, are headed for the Dinosaur 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, Tyrannosaurus rex?

The math concept of

## Overview

Lets Make a Deal!

Mike and his little brother, Andy, are headed for the Dinosaur 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, Tyrannosaurus 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.

## Editorial Reviews

Children's Literature
In this book, students learn about comparative value, an important concept for understanding place value, equating measurements and understanding equations. Mike and his brother Andy collect dinosaur cards. Andy has just turned seven and his parents are letting him go to the Dinosaur Card Trading Fair for the first time. He and Mike have big plans to get a T. Rex card. At the last fair, Mike found a girl who wanted three Allosaurus cards for the T. Rex card. Mike and Andy must wheel and deal thirteen cards to eventually put together the right combination to garner the cherished T. Rex. All the while the clock is running out. The big surprise is what Mike does with the card when he gets it. A Level 3 book from the "Math Starts" series. 2001, HarperCollins, \$15.95. Ages 7 to 10. Reviewer:Kristin Harris
School Library Journal
Gr 2-4-Using dinosaur trading cards as a theme, Murphy explores the concept of equivalent values. Mike and his brother, Andy, go to a trading fair in hopes of finding a Tyrannosaurus rex card. By making various trades they are successful in getting the coveted item. The story contains just the right amount of tension as well as tidbits of dinosaur facts interspersed among the math concepts. Colorful pictures of enthusiastic traders in dinosaur masks and hats add interest. A concluding page gives suggestions of various math activities that correlate with the book. Teachers and students alike will find this one a winner.-Anne Knickerbocker, Cedar Brook Elementary School, Houston, TX Copyright 2001 Cahners Business Information.
Kirkus Reviews
Murphy continues to amuse with math-quite a trick considering the amount of anxiety the subject manages to generate. Here he tackles the concept of comparative value by working it into a story of trading cards. Mike and his brother Andy are dinosaur trading card enthusiasts. It's Andy's birthday and as a special treat he is getting to accompany older brother Mike to a trading fair for the first time. Mike is in hot pursuit of a Tyrannosaurus rex card, but he has to wheel and deal to get the cards the owner of the T. rex wants in trade. As the story progresses, small boxed items on the page allow readers to see the action in terms of equations-two Pterosaur cards equals one Stegosaurus card, four of which equal one Tyrannosaurus card-and also learn a few facts about the dinosaurs. And sweetly, at the end of all the furious trading Mike gives Andy the card for his birthday present. O'Malley's color-shocked artwork is a real plus to Murphy's story, which easily takes the mystifying sting out of comparatives. A guide is included to help kids get the most out of the book, and a few games are suggested to enjoyably extend the math lesson. (Picture book/nonfiction. 7-9)

## Product Details

ISBN-13:
9780064462518
Publisher:
HarperCollins Publishers
Publication date:
08/28/2001
Series:
MathStart 3 Series
Pages:
40
Sales rank:
194,743
Product dimensions:
9.81(w) x 8.00(h) x 0.00(d)
Lexile:
410L (what's this?)
Age Range:
6 - 10 Years

## Meet the Author

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.

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