This book describes resources to younger readers, including capital resources and natural resources. Emphasis is placed on how most resources are of limited supply, so producers and consumers must make choices when things they want or need become scarce. An impressive array of full-color images enhances the reading experience.

This book carefully explains how countries around the world engage in trade. Whether it is a detailed description of how countries negotiate trade agreements, how countries use tariffs to make buyers want to buy locally produced goods, or the extremes of using trade embargoes as political tools, this book provides essential information with plenty of full-color images to help explain the basics of trade in a global economy.

This book uses math and science to help students learn about Continents. Math challenge questions provide students with the opportunity to apply math skills as they learn about the characteristics of the world's continents.

This book uses math and science to help students learn about Islands. Math challenge questions provide students with the opportunity to apply math skills as they learn about the characteristics of islands.

This book uses math and science to help students learn about mountains. Math challenge questions provide students with the opportunity to apply math skills as they learn about the characteristics of mountains.

Take an in-depth look at mathematics in this science encyclopedia.

Take an in-depth look at physics in this science encyclopedia.

This alphabet book brings the topic of economics down to a child's level, using tangible examples and scenarios to explain complex ideas. M is for Money uses snappy rhymes and expository text to introduce subjects ranging from supply and demand to taxes. Dynamic and witty artwork brings each topic to life.

This book explains how models help us test new designs and to understand living things. The book includes various types of models, such as scale, graphical, conceptual, and computer models, which are used to analyze how we understand different things.

This book explains the various methods of scientific tools, including measurement, models, and tools that extend our senses, and how these scientific tools are changing.

Take an in-depth look at mathematics in science in this science encyclopedia.

People who make clothes need to get their numbers right. From the length of fabric to the size of a pair of jeans, math plays an important role in the fashion industry. In Fashion Math, you'll learn some of the ways the math you learn in the classroom is important on the catwalk. You may even want to use that math to try your hand at making your own clothes!

Almost any game you play needs math. From poker to computer games, from video games to board games, math has a role to play. Game Math will help you understand your favorite games better. You may even find you're a better player when you understand the math behind the rules!

When you see a sign in your favorite store saying that everything is 30% off, can you do the math to figure out what that means? Are you good at keeping track of how much things cost while remembering how much money you actually have in your wallet? What about sales tax? Do you remember to add that on to your total costs when you're deciding if you have enough money to buy a pair of jeans? Shopping Math can help you do all this and more!

The speed of a pitch, the number of points scored, the time left on the clock . . . math is everywhere in the world of sports. Learn about the numbers and statistics behind sports like baseball, basketball, and football, and you'll find you understand the sports you love even better. In Sports Math, you'll discover that the math you learn in the classroom is just as important on the soccer field and basketball court.

We live our lives according to the numbers on a clock. Whether its getting to school on time, allowing enough time in a day for the things we need to do, or timing an activity, those numbers are an important part of almost everything we do. Time Math will help you understand schedules and timetables. You'll be able to better manage the math that runs our clocks!

Modern life would be very different without the ideas of brilliant Greek scholar Archimedes. From the simple lever to complicated machines, his work in mathematics, physics, engineering, and astronomy helped to shape the world we live in today. Few thinkers of any time period have had as big an impact on math and science as the genius Archimedes. Learn the story of one of the most important mathematical thinkers of all time in Archimedes: Ancient Greek Mathematician.

If youve ever gotten a check for your birthday or saved money for something you wanted to buy, youve seen that even a little money can mean a lot of math. Understanding the math behind money and banking can help you save and spend wisely, even if you dont have much. In Banking Math, youll learn about the numbers and arithmetic that are part of everyday life. Whether youre buying something at the store or saving for a vacation, math is a huge part of everyday life.

Have you ever thought about starting a business? Even if you just babysit . . . or mow lawns . . . or sell homemade jewelry at craft fairs, youll need to know some basic math to help you keep track of your expenses and earnings. Businesses need math. Learn what youll need to know to make money. Who knows where it might lead you!

From download speeds to the amount of memory left on your hard drive, math is a big part of using computers. Understanding the math that is so important to computers can help you in the classroom and in future jobs. When you're playing computer games, understanding math can even help you have more fun. In Computer Math, you'll learn about how math powers the computers you use every day.

Cooking is a kind of science - you have to get the measurements right to make everything work. It takes math. In Culinary Math, you'll discover how numbers, ratios, and other math help make tasty foods you can cook yourself.

Positive and negative numbers are addressed in this fun book with rhyming text. Learn all about absolute value, how to compare and order numbers, rational values, and four quadrant graphing, with easy to understand examples and practice exercises. So, hop on the number line and start learning more about numbers. This book will allow students to recognize that in a multi-digit number, a digit in one place represents 10 times as much as it represents in the place to its right and 1/10 of what it represents in the place to its left.

Through this rhyming text with a catchy title and colorful graphics, students will enjoy learning about graphing in a groovy way! The book is designed to make this math concept easy to understand and is filled with examples and question/answer based exercises. So, jump on the grid lines and find out all you need to know about groovy graphing! This book will allow students to recognize area as an attribute of plane figures and understand concepts of area measurement.

Step into the unknown and find balance in math equations. This book, with rhyming text, explores how to solve equations by checking that both sides are balanced. By using visual representations and sample questions, students will master one-variable equations. This book will allow students to write, read, and evaluate expressions in which letters stand for numbers.

Multiplying and dividing fractions can be a funky mess if you dont take the right steps. The rhyming text in this book will help students understand, in a fun way, just how to tackle these fractions with step-by-step directions and visual representations. Students can then practice what they learned by completing the sample problems! This book will allow students to apply and extend previous understanding of multiplication and division to multiply and divide fractions.