Dinosaur Deals

Level 3: Equivalent Values

Four Stegosaurus for one Triceratops. Two Triceratops for one Allosaurus. It’s the Dinosaur Card Trading Fair, and brothers Mike and Andy are wheeling and dealing, trying to make enough trades to get the ultimate card—the ferocious Tyrannosaurus rex. True dinosaur facts on the cards are an added bonus in this story about equivalency, an elementary algebraic concept.

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.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.

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.

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