Luckily, algebra will help you solve each problem. By using simple addition, subtraction, mulitplication, and division, you'll discover that solving math mysteries isn't scary at all -- it's fun!

    A gift from a wizard makes Jack's fortune grow by ones and twos, then threes and fours, then faster and faster, challenging you to keep track of his riches.

    Dynamic illustrations combine with simple yet challenging questions to stimulate young learners to move beyond simple counting to more complex mathematical tasks. Full color.

    She has to use standard units like inches and nonstandard units like paper clips to find out height, width, length, weight, volume, temperature, and time. Lisa decides to measure her dog, Penny, and finds out ... Penny's nose = 1 inch long Penny's tail = 1 dog biscuit longPenny's paw print = 3 centimeters wide ... and that's only the beginning! Lisa learns a lot about her dog and about measuring, and even has fun doing it.This clear and engaging concept book, delivered with a sense of humor, is certain to win over the most reluctant mathematician.

    Is there enough time? You have 3 shirts and 2 pairs of pants. Can you make 1 good outfit? Then you start to wonder: Why does everything have to be such a problem? Why do 2 apples always have to be added to 5 oranges? Why do 4 kids always have to divide 12 marbles? Why can't you just keep 10 cookies without someone taking 3 away? Why? Because you're the victim of a Math Curse. That's why. But don't despair. This is one girl's story of how that curse can be broken.

    Perfect for reading on winter days, the book features photos of real snow crystals in their beautiful diversity. Snowflake-catching instructions are also included.

    S. of A. States all over the country were waking up, having their first cups of coffee, reading the morning paper, and enjoying the beautiful sunrise.All the states, that is, except for Kansas."At the first annual "states party," Virginia and Idaho hatch a plan to swap spots so each can see another part of the country. Before the party is over, all the states decide to switch places. In the beginning, every state is happy in its new location. But soon things start to go wrong. Will the states ever unscramble themselves and return to their proper places?Packed with madcap humor and whimsical illustrations, this quirky story-starring all fifty states-is chock-full of introductory facts and silly antics that will make learning geography as much fun as taking a vacation.

    A perfect introduction to mathematical concepts for young readers, written by a Newbery honor-winning author!This colorfully illustrated biography of the Greek philosopher and scientist Eratosthenes, who compiled the first geography book and accurately measured the globe's circumference, is just right for budding mathematicians, scientists, historians, and librarians! Filled with fascinating details about Eratosthenes's world (and in print since 1994), kids are sure to flip through the pages time and again.

    in full color. An apple pie is easy to make...if the market is open. But if the market is closed, the world becomes your grocery store. This deliciously silly recipe for apple pie takes readers around the globe to gather ingredients. First hop a steamboat to Italy for the finest semolina wheat. Then hitch a ride to England and hijack a cow for the freshest possible milk. And, oh yes! Don't forget to go apple picking in Vermont! A simple recipe for apple pie is included.

    Frizzle's class is having a hard time putting together a giant globe of the world. A piece is missing...an island so new it hasn't been discovered yet! Before they know it, the kids are beneath the oceans's surface, exploring an underwater volcano. Join the class as they learn about volcanoes.

    Prompted by a poem and a visual clue, students are asked to answer what fration is illustrated in the cow's antics, starting with halves and progressing into thirds, fourths, eights, and tenths.

    A life of the Genoese weaver's son who sought to prove the world is round, telling how he studied map-making in Portugal, waited long years for financial and material support from Isabella of Spain, and finally made four voyages to the New World.

    Tiny likes to read. But both twins like to eat . . . POPCORN! So while Tony cooks it, Tiny reads about what popcorn is, how it's stored, how it's cooked, how different Native American people made it, how much popcorn Americans eat, popcorn stories and legends, and popcorn recipes. Tomie de Paola, who eats a lot of popcorn, shares what he knows about it with humor and imagination.

    For young Jonathan and his sisters, Mom is the teacher and a whole lot more, and Dad is the best substitute any kid could want. From math, science, and field trips to recess, show-and-tell, and art, a school day with this intrepid, inventive family will seem both completely familiar and totally unique. Includes a selection of family snapshots and a note from the author.

    Frizzle and friends team up to locate a "star", and in the process learn about the cooperative nature of animal social groups. Full color.