This title explains why people in one country trade goods and services with people in other countries. Accessible, real-world examples help readers understand how needs are met through the exchange of goods and services around the world. Concepts include trade, importing, and exporting.
From time of day to reading calendars, time concepts are part of daily life. Children will love this colorful and easy-to-understand introduction to the concepts of time. Amazing full-color images and useful, instructional text guides ensures readers understand the material.
Mr. Santiago's class is going to the zoo. Children can follow along on the class trip and learn how percentages, ratios, and fractions work using real-life examples.
Lily, the librarian, has started a summer reading club. Children can follow along with the club's members to learn all about bar, line, and circle graphs, as well as concepts such as data, scale, maximum, and minimum.
A grocery store is filled with much more than food. The aisles and shelves hold plenty of fun, too. As Justin helps his mother shop, he explores the variety of 3-D shapes all around him. As Justin can show you, there are always plenty of shapes to see!
This entertaining book takes young readers to a soccer practice to show them the basics of addition. Easy-to-follow text helps children learn about addition words and symbols, strategies for adding up to 10+10 and beyond, the additive identity and commutative property in addition, and how to use objects, pictures, and number sentences to represent real-life addition problems.
Four hungry Torosauruses are chasing three fast Mynonykuses. One of them is not going to get lunch! Kids will love counting dinosaurs in this exciting book about numbers.
Count the circles on Billy's bike as he tries to catch up to his pet Hypsilophodonts. Kids will enjoy looking for shapes in this entertaining book that puts kids and dinosaurs together in everyday situations.
Engaging narrative, vivid photographs, and real-world examples combine to teach readers how to solve time word problems. Readers will learn how to measure time intervals in minutes and represent authentic time problems on a number line diagram.
This engaging title builds on the material covered in the Fractions title in this series. Readers will develop an understanding of fractions as numbers. Easy-to-follow text and supportive images help readers recognize and generate equivalent fractions. Readers will also learn how to compare two fractions with the same numerator or the same denominator and represent fractions on a number line.
Understanding how to make ten is a key building block in the base-ten system. In this engaging title, young readers explore different number combinations that make up the number ten. Easy-to-follow text and colorful images introduce readers to the concept of a fact family and related facts. The text also models how readers can use their fact family knowledge to solve missing addend questions that equal ten.
Fun pictograms and infographics about the animal kingdom make learning about math topics such as symmetry, coordinates, and place value easy and fun. In this book, readers go on a mission to some of the worlds amazing habitats and use their mathematical skills to track tigers, count penguins, and search for jaguars. Math puzzles and exercises help children build confidence in their math skills.
Calendar Math provides an ideal introduction to measuring time. From the days of the week to months of the year, readers will learn the different ways a calendar measures time. Vivid, full-color images and entertaining narrative text model concepts such as patterning, comparing and contrasting, and solving simple problems.
This entertaining title introduces young readers to the concept of patterning. Readers will learn that a pattern is an ordered set of numbers or shapes arranged according to a rule. Accessible text and vivid images guide readers as they learn to identify patterning rules and extend patterns. Readers are also encouraged to create their own patterns and recognize patterns in the world around them.
Fun pictograms and infographics about space make learning about math topics such as angles, decimals, and probability easy and fun. In this book, readers are in control of a space mission through the Solar System and use their mathematical skills to navigate past comets, dodge asteroids, and land on the surface of Mars! Math puzzles and exercises help children build confidence in their math skills.
Fun pictograms and infographics about the human body make learning about math topics such as bar charts, percentages, averages and fractions easy and fun. In this book, readers go on an amazing mission inside the human body and use their mathematical skills to check their diet, test their strength, and chart their growth. Math puzzles and exercises help children build confidence in their math skills.
Fun pictograms and infographics about planet Earth make learning about math topics such as volume, scale diagrams, division, and number lines easy and fun. In this book, readers go on a mission to protect threatened areas around the world and use their mathematical skills to measure geysers, protect forests, and check on glaciers. Math puzzles and exercises help children build confidence in their math skills.
Mathematicians say that symmetry has to be identical parts, but nature is never truly identical. However it is far more interesting than geometric shapes! Reading this book, children will become aware of the balance of things in nature. They will delight at amazing photographs of butterflies, beetles, leaves and flowers, fruit, sea creatures, and children. This book will show how a person with arms outstretched has five-fold symmetry like a sea star, and if you drew a circle around his or her body in that position, the navel would be at its center.
We measure time in minutes, hours, days, weeks, months, seasons, years, and in historical dates. We talk about mealtimes, bedtimes, school times, holiday times, and good times. We also use words such as past, present, future, next, last, before, and after. This engaging book looks at human time as well as how time passes in nature. Time is about change. How do animals and plants sense changes in time? What changes do we see in nature throughout a day, month, and year?
This interesting new book provides essential information with plenty of full-color images to help explain the basics of importing and exporting in a global economy. Aspects such as importing and exporting regulations are carefully and easily explained in this latest Crabtree title.
This innovative title supports both math and science standards. Readers learn to identify different tools used to measure matter, such as balances, rulers, and thermometers. Easy to follow text helps readers gain hands-on experience measuring, collecting and recording data, and graphing their results.
When a quick guess is needed to count something, rounding can make math faster and fun! Read about two friends who are helping at a school fair. They learn that measuring, adding, and subtracting is easier if the numbers are rounded to whole numbers first. The children figure out ways to use rounding to estimate the amount of money raised at the fair, too!
Polygons are shapes with a number of sides joined together. They are everywhere! A baseball field is a diamond-shaped polygon. Join Emily at a baseball game and look for different shapes. She discovers that the field is full of much more than baseball players - it's filled with polygons, too.
Betsy helps out at Aunt Essie's Downtown Diner. Supplies, such as straws, are packed in groups of ten. Betsy breaks up tens and make tens as she helps set up and clean up. Read about the restaurant where Betsy learns about regrouping. See how regrouping helps in addition and subtraction.
Have you ever built something really big with building blocks? Did you need to use hundreds of blocks? Read about an after-school center, where the toys are counted in ones, tens, and hundreds, and it's easy to see place value in the numbers. Learning about place value is all fun and games at this play center!
