Time

Penny Dowdy (author)

Publisher: Crabtree Publishing Company ISBN: 9780778790242

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.

What comes in sets?

Minta Berry (author)

Publisher: Crabtree Publishing Company ISBN: 9781427196507

This engaging title introduces young readers to the concept of equal sets. Decodable text and image support help readers identify familiar things that come in pairs, sets of threes, fours, fives, and more. The book uses relatable objects, such as four legs on a table and five fingers on a hand, to teach the concept of sets. Readers are also encouraged to find their own number set examples in their everyday lives.

Beginner Word Problems

Minta Berry (author)

Publisher: Crabtree Publishing Company ISBN: 9781427196453

This entertaining book takes the problem out of understanding beginner word problems. Readers will learn how to develop a step-by-step plan or strategy to solve basic word problems. This title uses real-life situations to model the problem-solving process for readers to teach skills such as identifying key information to determine which math operation is required, using drawings and models to see the problem, and carrying out the plan and communicating answers.

Length Word Problems

Helen Mason (author)

Publisher: Crabtree Publishing Company ISBN: 9781427191984

This book offers readers insight into solving length word problems. Designed to support the Common Core State Standards, this title includes strategies such as using drawings, symbols, and number lines to solve problems. Real-world examples and engaging text make learning meaningful to young readers.

Perimeter

Minta Berry (author)

Publisher: Crabtree Publishing Company ISBN: 9781427196477

This informative book introduces readers to the concept of perimeter using real-world examples. Through modeling, readers will learn that perimeter is calculated by adding together the length of each side of a figure. This title also explains how to measure the perimeters of familiar places, such as classrooms and football fields, by using addition and multiplication.

Word Problems: Mass and Volume

Helen Mason (author)

Publisher: Crabtree Publishing Company ISBN: 9781427191991

Word Problems: Mass and Volume uses an engaging narrative and authentic, real-world problems to teach readers strategies to solve one-step word problems involving mass and volume. The text models the problem-solving process for readers and provides hands-on opportunities for readers to apply their own problem-solving skills. Readers will discover that there is often more than one way to solve a problem.

Percentage

Dorianne Nardi, Marsha Arvoy (authors)

Publisher: Crabtree Publishing Company ISBN: 9780778791584

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.

Line, Bar, and Circle Graphs

Claire Piddock (author)

Publisher: Crabtree Publishing Company ISBN: 9780778791560

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.

3-D Shapes

Marina Cohen (author)

Publisher: Crabtree Publishing Company ISBN: 9781427194985

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!

Paul Challen (author)

Publisher: Crabtree Publishing Company ISBN: 9780778797630

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.

Dinosaur Numbers

David West (author)

Publisher: Crabtree Publishing Company ISBN: 9781427193223

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.

Comparing Fractions

Minta Berry (author)

Publisher: Crabtree Publishing Company ISBN: 9781427196460

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.

Time Word Problems

Lisa Colozza Cocca (author)

Publisher: Crabtree Publishing Company ISBN: 9781427191977

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.

Building Sets of Ten

Minta Berry (author)

Publisher: Crabtree Publishing Company ISBN: 9781427196484

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.

Calendar Math

Lisa Colozza Cocca (author)

Publisher: Crabtree Publishing Company ISBN: 9781427191960

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.

Patterning

Minta Berry (author)

Publisher: Crabtree Publishing Company ISBN: 9781427196491

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.

What is symmetry in nature?

Bobbie Kalman (author)

Publisher: Crabtree Publishing Company ISBN: 9781427194978

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.

¿Qué es el tiempo?

Bobbie Kalman (author)

Publisher: Crabtree Publishing Company ISBN: 9780778797722

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?

Nombres de animales bebé

Bobbie Kalman (author)

Publisher: Crabtree Publishing Company ISBN: 9781427195760

This delightful book teaches readers about the world of baby animals by identifying animals that share the same names. Adorable photos feature pups (baby dogs and foxes), cubs (baby wolves and bears), and kids (baby goats and human children). An activity featuring photographs of animals asks children how many baby animal names they know.

Sé contar

Bobbie Kalman (author)

Publisher: Crabtree Publishing Company ISBN: 9781427195722

One dog in a teacup, two caterpillars on a leaf, three horses having a conversation Fun photographs and simple repetitive text help introduce young readers to counting numbers from zero to ten. Strong picture-to-text support and a fish-counting activity encourage young readers to engage with the text.

I can count / Sé contar

Bobbie Kalman (author)

Publisher: Crabtree Publishing Company ISBN: 9781427195883

One dog in a teacup, two caterpillars on a leaf, three horses having a conversation Fun photographs and simple text help introduce young readers to counting numbers from zero to ten. A fish-counting activity encourages young readers to practice their counting skills.

Polygons

Marina Cohen (author)

Publisher: Crabtree Publishing Company ISBN: 9781427195036

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.

Regrouping

Claire Piddock (author)

Publisher: Crabtree Publishing Company ISBN: 9781427195043

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.

Rounding

Dorianne Nardi, Marsha Arvoy (author)

Publisher: Crabtree Publishing Company ISBN: 9781427195050

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!

I can count

Bobbie Kalman (author)

Publisher: Crabtree Publishing Company ISBN: 9780778791829

One dog in a teacup; two caterpillars on a leaf; three horses having a conversation. Fun photographs and simple text help introduce young readers to counting numbers from zero to ten. A fish-counting activity encourages young readers to practice their counting skills.