Search Results: 70 books from 1 publisher. Learn more

Stone Age Geometry: Triangles

Felicia Law, Gerry Bailey (author)

Publisher: Crabtree Publishing Company ISBN: 9781427182371

Leo teaches his cat Pallas all about triangles by applying his knowledge of geometry to their Stone Age world. Entertaining illustrations and stories provide a fun introduction to math concepts, explaining that different shapes created by the meeting of three lines are given different names. Information boxes accompany each story to explore real applications of triangles in the natural and designed world.

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?

How do Mortgages, Loans, and Credit Work?

Paul Challen (author)

Publisher: Crabtree Publishing Company ISBN: 9781427163707

The business of borrowing is the cornerstone of an economy. How do Mortgages, Loans, and Credit Work? explains clearly the different kinds of financial borrowing and their uses.

What is Importing and Exporting?

Carolyn Andrews (author)

Publisher: Crabtree Publishing Company ISBN: 9781427163714

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.

What is Insurance?

Carolyn Andrews (author)

Publisher: Crabtree Publishing Company ISBN: 9781427163721

Insurance is all around usat home, at work, in the caracting as a safety net in our daily lives. Look inside What is Insurance? to learn all about this fascinating and essential part of modern living.

What Are Goods and Services?

Carolyn Andrews (author)

Publisher: Crabtree Publishing Company ISBN: 9780778789680

Children are consumers, too, though they often do not realize it. This strikingly illustrated book helps youngsters understand the concepts of goods and services so that they recognize their role in the cycle of commerce. Readers will examine various jobs to understand where goods are made or services are provided. The concepts of producers and consumers are also carefully explained in a manner children will understand and enjoy.

What Are Taxes?

Baron Bedesky (author)

Publisher: Crabtree Publishing Company ISBN: 9780778789703

This is a volume designed to inform children what taxes are and why they are needed. Emphasis is placed on how taxes provide the funds needed to keep governments running, from local to federal levels. Young readers will understand how taxes are used to dissuade people from buying some items, such as cigarettes and gas-guzzling vehicles. Attractive color images help de-mystify this fascinating and important aspect of government.

What is Scarcity of Resources?

Jessica Cohn (author)

Publisher: Crabtree Publishing Company ISBN: 9780778789697

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.

What is Trade?

Carolyn Andrews (author)

Publisher: Crabtree Publishing Company ISBN: 9780778789710

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.

What Just Happened? Reading Results and Making Inferences

Paul Challen (author)

Publisher: Crabtree Publishing Company ISBN: 9780778798002

Science never stops-even when the experiment is complete. Now is the time to make sense of your data. This title teaches young scientists how to analyze, interpret, and communicate the results of their data.

What's Going On? Collecting and Recording Your Data

Kylie Burns (author)

Publisher: Crabtree Publishing Company ISBN: 9780778798019

Sharpen your pencils and put on your goggles! It's time to see science in action! This book helps readers hone their observation and recording skills during an experiment. Students will learn how to effectively collect and record data in a journal, as well as organizing data using graphs, charts, and diagrams.

What's Going to Happen? Making Your Hypothesis

Paul Challen (author)

Publisher: Crabtree Publishing Company ISBN: 9780778798026

Sometimes a hunch isn't enough. Learn how scientists make educated guesses called hypotheses to test their theories. A hypothesis is the foundation of the scientific method. Readers will learn how to construct a measurable and focused hypothesis to test in an experiment.

What's the Plan? Designing Your Experiment

Natalie Hyde (author)

Publisher: Crabtree Publishing Company ISBN: 9780778798033

It is essential that scientists design a plan to ensure their experiments are conducted accurately and safely. Readers will learn how to gather materials, and create a step-by-step procedure to test their hypothesis. Readers will become familiar with controls and variables in a scientific setting.

What's the Problem? How to Start Your Scientific Investigation

Kylie Burns (author)

Publisher: Crabtree Publishing Company ISBN: 9780778798040

Science engages a curious mind. Questions can come from practically anywhere. Readers will learn why scientists ask questions and how to develop meaningful questions to help guide their scientific experiments.

What Do We Know Now? Drawing Conclusions and Answering the Question

Robin Johnson (author)

Publisher: Crabtree Publishing Company ISBN: 9780778797999

Science was meant to be shared with others. Scientists must now determine whether or not the data supports their hypothesis. This book illustrates fun and interesting ways in which to report your results, from a science fair demonstration to a written report. Readers are also encouraged to use their results as a springboard for further experimentation.

What Should I Do? Making Good Decisions

John Burstein (author)

Publisher: Crabtree Publishing Company ISBN: 9780778797906

Its very important for a child to learn how to make good decisions. In this informative new book, Slim Goodbody helps children learn the steps they should follow in making almost any decision: Stop, Think, Act, Review (STAR).

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!

Area

Dorianne Nardi, Marsha Arvoy (author)

Publisher: Crabtree Publishing Company ISBN: 9781427194992

What is area? It is a measure of space or of a place! The kids in Mrs. Jacksons class are learning all about area, and you can, too. See why area is important, what it is used for, and how to measure area in meaningful ways. Soon you will be measuring area in your own everyday experiences.

Decimals

Claire Piddock (author)

Publisher: Crabtree Publishing Company ISBN: 9781427195005

A pet store is not only a good place to learn about animals, its also a fun place to learn about math! Follow Luis on his pet store adventure and learn about decimals. The animals get involved, toothed goldfish even act out math problems!

Money Problems

Marina Cohen (author)

Publisher: Crabtree Publishing Company ISBN: 9781427195012

Find out how to add and subtract cents when buying or selling something. Brian wants to make a lemonade stand to raise money for the local food bank. How much should he charge for a glass? How much change will customers receive? How much money will Brian raise?

Place Value: The Next Stage

Claire Piddock (author)

Publisher: Crabtree Publishing Company ISBN: 9781427195029

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!

Position and Direction

Claire Piddock (author)

Publisher: Crabtree Publishing Company ISBN: 9780778791591

Kids will learn about position and direction by following along with Sam in his family's new home. Where will he put things in his room - top, bottom, inside, outside, behind, in front, above, or below? Other concepts include left and right, and north, south, east, and west.