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Did you know that a frog can jump 29 times its body length? Or that an ant can lift an object 50 times its weight?
Tricia GardellaIf you could hop like a frog, were strong as an ant, or had the brain of a Brachiosaurus, imagine how different your world would be! In this book the author examines some of the amazing physical attributes an abilities of animals and compares them with those of humans. The text and humorous illustrations provide reader with an eye-opening look at ratio and proportion. Four pages of problem-solving exercises at the back of the book give the reader additional information about each comparison along with thought-provoking questions for follow-up. Sure to be a hit with both reluctant readers and math enthusiasts.
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Publishers Weekly - Publisher's WeeklyIn this high-spirited book, Schwartz does for ratio and proportion what he did for numbers in How Much Is a Million? The author, in an opening letter to readers, admits his secret childhood wish: that he could "hop like a frog," which leads to its corollary--"Once you know that a frog can jump twenty times its body length, you can figure out how far you could hop if you hopped like a frog." Schwartz continues to extrapolate such kinds of information into fun-filled comparisons: "If you ate like a shrew, you could devour over 700 hamburgers in a day!" Warhola (Bigfoot Cinderrrrrella) matches the text with wit and whimsy, as he imagines what would happen if children grew as fast in their first nine months after birth as they do during pregnancy: a gigantic baby tips an enormous seesaw that uses a mountaintop for a fulcrum and raises a mound of 2.5 million elephants at the other end. Author and artist wisely let the dramatic facts speak for themselves, with just a bit of a wink: "If you flicked your tongue like a chameleon... you could whip the food off your plate without using your hands! But what would your mother say?" The book concludes with straightforward mathematical and zoological explanations for each vignette, then invites readers to undertake some simple and amusing equations of their own. Trivia fans and aspiring scientists alike will revel in these pages. Ages 5-9. (Sept.) Copyright 1999 Cahners Business Information.
Children's Literature - Children's LiteratureDavid Schwartz is passionate about numbers. His other books How Much Is a Million and G Is for Googol are a measure of his love. In this title, If You Hopped Like a Frog, we are introduced to the concept of ratio by comparing what humans would be able to do if they had bodies like different animals. To answer the title, if you hopped like a frog, you could jump from home plate to first base in one mighty leap. If you were strong as an ant, you could lift a car! At the end of the book, the formulas for these answers are presented--a real help to us mathematically challenged beings. Warhola's full-page illustrations are chocked full of entertainment. I love the Brachiosaurus with the tiny head. That's how I feel when confronted with these concepts, but the learning is fun. 1999, Scholastic, Ages 6 up, $15.95. Reviewer: Jan Lieberman
Library JournalGr 1-3-This picture book invites children to learn about some of the amazing things that animals can do. For example, "If you ate like a SHREW...you could devour over 700 hamburgers in a day!" These tidbits of information are accompanied by cartoonlike illustrations that add to the fun of imagining what readers could do if they had the physical characteristics of different creatures. While this is an amusing, although simplistic picture book, the author's note presents it as a math concept book intended to introduce children to the concepts of ratio and proportion. Thus, children learn that the ant is "lifting 50 times its own weight." Kids are then challenged to use their own weight to figure out what they could lift if they had similar strength. However, the math portion is relegated to a few pages of small print at the end of the book, where readers are much less likely to pay attention to it. It will take an enterprising teacher or parent to extract the intended math lesson. Nevertheless, youngsters will enjoy the humor of both the text and the full-color illustrations.-Arwen Marshall, New York Public Library Copyright 1999 Cahners Business Information.
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