The 100-Pound Problem


Book Description

Discover Math Matters! With over 15 million books sold worldwide, this award-winning series of easy-to-read books will help young readers ages 5–8 approach math with enthusiasm. Great for fans of MathStart or Step into Reading Math. How, in a boat that only holds 100 pounds, can a boy transport himself, a dog, and assorted gear that weigh much more than that? With engaging stories that connect math to kids’ everyday lives, each book in the Teachers’ Choice Award–winning Math Matters series focuses on a single concept and reinforces math vocabulary and skills. Bonus activities in the back of each book feature math and reading comprehension questions, and even more free activities online add to the fun! (Math topic: Weight).







Fibonacci’s Liber Abaci


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First published in 1202, Fibonacci’s Liber Abaci was one of the most important books on mathematics in the Middle Ages, introducing Arabic numerals and methods throughout Europe. This is the first translation into a modern European language, of interest not only to historians of science but also to all mathematicians and mathematics teachers interested in the origins of their methods.




The Soft Corn Problem


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Automotive Industries


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Applied Mechanics


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Problems of Hungry Children in the District of Columbia


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Considers the operations of D.C. public welfare programs to alleviate poverty and malnutrition.




Report of the Director


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Industrial Magazine


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