Highlights fascinating facts about math, from the invention of zero to numbers too large to write out. Learn about the ancient Egyptian god that represents one million, the magic of the number 9, the infinite digits of pi, and more! Additional features include a table of contents, a phonetic glossary, an index, and sources for further research.

Who took the cookies? Be a math detective along with the kids at Lincoln Elementary in this pick-your-own-path mystery. Be a detective and use your addition, subtraction, and skip counting skills to solve the case. Things keep going missing at Lincoln Elementary. And the student detectives there love solving mysteries! Can you help find the missing cookies? Choose the right answer, and advance to the next clue. Choose the wrong answer, and clear text and visuals explain the math and encourage you, the reader, to try again.

Workers discover a time capsule at Lincoln Elementary, but it’s locked! What could be inside? Whoever made it left a trail of geometry clues based on shapes. Be a math detective along with the kids at Lincoln Elementary and help solve this pick-your-own-path mystery. At Lincoln Elementary, the student detectives love solving mysteries! Can you help them solve the clues to open the time capsule? Choose the right answer, and advance to the next clue. Choose the wrong answer, and clear text and visuals explain the math and encourage you, the reader, to try again.

Oh no! Lucky, the class pet, has escaped! Where did he go? Be a math detective along with the kids at Lincoln Elementary in this pick-your-own-path mystery. Use math and measurement skills to figure out where Lucky could be hiding. Things keep going missing at Lincoln Elementary. And the student detectives there love solving mysteries! Can you help find the missing class pet? Choose the right answer, and advance to the next clue. Choose the wrong answer, and clear text and visuals explain the math and encourage you, the reader, to try again.

In this pick-your-own-path mystery, four kids at Lincoln Elementary are invited to complete a math challenge at the school carnival. But who set up the clues? And why? Be a detective and use your money math skills to solve the case. At Lincoln Elementary, the student detectives love solving mysteries! Can you help solve the carnival clues? Choose the right answer, and advance to the next clue. Choose the wrong answer, and clear text and visuals explain the math and encourage you, the reader, to try again.

Mrs. Hall’s desk is overflowing with new pencils! But why are there so many? Be a math detective along with the kids at Lincoln Elementary and help solve this pick-your-own-path mystery. Use your math skills and knowledge of place value to solve the case. At Lincoln Elementary, the student detectives love solving mysteries! Can you help them solve the pencil problem? Choose the right answer, and advance to the next clue. Choose the wrong answer, and clear text and visuals explain the math and encourage you, the reader, to try again.

When items go missing from the school store at Lincoln Elementary, the kids check their data to solve the case! Be a math detective along with the kids at Lincoln Elementary and help solve this pick-your-own-path mystery. Use data, graphing, and math skills to find the culprit. Things keep going missing at Lincoln Elementary. And the student detectives there love solving mysteries! Can you help find school store thief? Choose the right answer, and advance to the next clue. Choose the wrong answer, and clear text and visuals explain the math and encourage you, the reader, to try again.

This title discusses the important difference between wants and needs, and how it relates to money. Through imaginative activities and relatable “What would you do?” scenarios, children will learn how to weigh the pros and cons of a purchase, and to equate smart money choices with examples from their own lives.

The concept of how money is earned and the nature of goods and services are examined in this title. Several real-world examples and motivating scenarios help young readers better understand the role of work, the concept of earning a salary or wage, and the roles of producers and consumers.

This title explores the role of money in the lives of people around the world, including its necessity for meeting basic needs, as well as the importance for charity. Through authentic examples and engaging scenarios, young readers will learn that money, when used wisely, can be an instrument of good in the world.

This title explores the concept of saving and its importance. The benefits of financial discipline are presented through accessible examples and motivating scenarios, which encourage young readers to consider how they can practice saving in their own lives.

The massive volume of information available in the world today makes clarity a key component of data literacy. Using engaging activities and relevant, real-life examples, both digital and online, Bar Graphs is an important stop along the information highway of the 21st century. Visual representations of data are the quickest and clearest way to share information. This title teaches young readers how to organize and present data using bar graphs, and explains how to interpret data in this form.

In Line Graphs, readers will discover how to organize, present, and interpret data in this useful visual form. Relying on critical thinking to assess data, readers will learn how to recognize patterns and predict outcomes. Imaginative activities and meaningful, real-world examples, both digital and online, will stimulate young minds to “get in line” with the benefits of data literacy.

Clear representations of data are vitally important in the information overload of the 21st century. In Picture Graphs, young readers will continue their journey toward data literacy by learning how to organize and present data using pictures, and how to use critical thinking to assess and interpret data in this form. Fun activities and relatable, real-world examples, both digital and online, will encourage readers to “picture” information in a new way.

With fun and engaging activities, Collecting Data outlines the steps to properly gathering and organizing data, which include observation, assessing the reliability of sources, and critically assessing data in order to draw reliable conclusions. Readers begin their journey toward data literacy by developing their sense of curiosity, and then conducting investigations, just like solving a mystery.

Fun pictograms and infographics about extreme sports make learning about math topics such as ratios, area, percentages, averages, and angles easy and fun. In this book, readers are presented with scenarios in a number of extreme sports and use their mathematical skills while skyrunning, BASE jumping, ziplining, ice climbing, and racing motocross. Math puzzles and exercises help children build confidence in their math skills.

Fun pictograms and infographics about computer games make learning about math topics such as ratios, speed, distance, time, volume, percentages, and equations easy and fun. In this book, readers are presented with several computer game scenarios and must use their mathematical skills to solve equations to up their scores. Math puzzles and exercises help children build confidence in their math skills.

Fun pictograms and infographics about the natural and human-made wonders of the world make learning about math topics easy and fun. In this book, readers go on a mission to explore these wonders and use their mathematical skills at such sites as the pyramids of Egypt, the Great Wall of China, Mount Everest, and the Galapagos Islands. Math puzzles and exercises help children build confidence in their math skills.

A large bakery wants a regular supply of your homemade brownies. What if you could figure out how to do it out of your parents' kitchen using math? This amazing book makes you a math problem solver by putting you into situations faced by people who are building their own businesses. Math is an important part of the job of running a pet store or a bakery, or creating a video game. Three exciting stories lead to a problem you must solve using math. A toolbox section helps take you through similar examples and provides math exercises you can do that will help give you a better understanding of how to solve the problem in the story.

A patient's infected insect bite has doubled in size overnight. Can math help you determine an effective treatment? This exciting book makes you a math problem solver by putting you into situations faced by people who work in health care. Math is an important part of the job for medical doctors, registered nurses, and care aides. Three exciting stories lead to a problem you must solve using math. A toolbox section helps take you through similar examples and provides math exercises you can do that will help give you a better understanding of how to solve the problem in the story.

What if you could save a baby whale using math? This exciting book makes you a math problem solver by putting you into situations faced by people who care for animals that live in water. Math is an important part of the job for marine biologists, veterinary technologists, and aquarists - people that maintain aquariums. Three exciting stories lead to a problem you must solve using math. A toolbox section helps take you through similar examples and provides math exercises you can do that will help give you a better understanding of how to solve the problem in the story.

What if you could save a person in danger from rapidly rising floodwaters using math? This amazing book makes you a math problem solver by putting you into situations faced by people who work in jobs that serve the community. Math is an important part of the job for police officers, fire fighters, and commanders in the Coast Guard. Three exciting stories lead to a problem you must solve using math. A toolbox section helps take you through similar examples and provides math exercises you can do that will help give you a better understanding of how to solve the problem in the story.

This exciting book makes you a math problem solver by putting you into situations faced by people who work in construction. Math is an important part of many jobs involved in building structures. Three exciting stories lead to a problem you must solve using math. A toolbox section helps take you through similar examples and provides math exercises you can do that will help give you a better understanding of how to solve the problem in the story.

This exciting book makes you a math problem solver by putting you into situations faced by people who work in sports and sports-related businesses. Math is an important part of many jobs involved in athletics. Three exciting stories lead to a problem you must solve using math. A toolbox section helps take you through similar examples and provides math exercises you can do that will help give you a better understanding of how to solve the problem in the story.

Fun pictograms and infographics about the oceans make learning about math topics easy and fun. In this book, readers go on a mission deep underwater and use their mathematical skills while learning about scuba diving and submarines, and exploring life in coral reefs, deep ocean waters, and underwater volcanoes. Math puzzles and exercises help children build confidence in their math skills.