Introduces the history of money and discusses its development from items such as shells and furs to legal tender; features a glossary; and lists resources to explore the subject further.
Did you know that a Stegosaurus weighed more than a pickup truck? Or that despite its fierce looks, it ate only plants? Learn more inside.
How did Spinosaurus get its name? What did it eat? Find the answers to these questions and more in this fact-filled book!
Explore the colorful customs, people, and places of South Dakota. With straightforward text and captivating photos, this book is a great introduction to the state. Maps and symbols are included to enrich the student's understanding of geography and state identity.
Oviraptor's name means 'egg thief.' Learn why scientists made a mistake when they named this dinosaur!
Maisaura's name means 'good mother lizard.' Find out why scientists believe these dinosaurs were such good moms.
Iguanodon was one of the first dinosaurs that had the ability to chew its food. Learn more facts about this unique and very social dinosaur in this interesting book.
Compsognathus was a tiny dinosaur not much bigger than a chicken. Find out how this little animal survived in a world filled with much larger creatures.
Apatosaurus was one of the biggest animals to ever walk the planet! Find out more about the Apatosaurus's life, what it ate, and what scientists have learned from its fossils.
Ankylosaurus's name means 'stiff lizard.' Discover why as you learn what this dinosaur looked like and where it lived millions of years ago.
Allosaurus was one of the biggest meat-eating dinosaurs to ever live. Learn what this huge hunter looked like, ate, and did all day when it roamed the land.
En el libro aprenderás cómo viven los pueblos indígenas y su contribución al medio ambiente.
Where do you come from? Learn about heritage and how to build your own family tree.
En el libro aprenderás cómo vivían los colonizadores de los Estados Unidos.
Get on a covered wagon and explore everything about pioneers with this book from what they ate and wore, to who they encountered and where they traveled.
En el libro aprenderás cómo vivían los nativos americanos.
En este libro conocerás las experiencias de algunos inmigrantes que llegaron a Estados Unidos.
Young readers will learn about the US flag through simple text and photos.
Aprende qué aportaron los exploradores más importantes de la historia.
This timeless ballad has been part of American folklore for over a century. Born with a hammer in his hand, John Henry discovers his true calling as a steel-driving man but he inevitably meets his match in a race against a steam drill that provides a powerful metaphor for the disruption and loss of innocence created by the industrial age. Thornton's charcoal drawings deftly capture the triumphal spirit of this cautionary tale.
Government leaders help to govern our country, our states, and our cities. They make important decisions, solve problems, and see that laws are enforced. The people they serve elect most government officials. Long ago, there were not as many government officials as there are today because the United States had a smaller population.
Bank tellers help people take care of their money. Long ago, bank tellers did most of their work by hand. Today, computers make their work faster and easier. There are even machines called Automatic Teller Machines, or ATMs. Although convenient, ATMs cannot replace bank tellers.
Store clerks help people shop. Many years ago, stores were smaller and store clerks had to perform most of the jobs in the store. Today, stores are larger and usually employ several store clerks to help. Store clerks today must know how to use computers to do their jobs.
Throughout history, people have recorded ideas and important events in their lives and communities. Methods of writing have changed greatly over the years. Today, computers make a writer's job much easier and enable people to write and publish more material than ever before.
Long ago, it often took weeks for postal workers to deliver mail to people who lived far away. Today, mail is transported quickly by trucks and airplanes, and it usually reaches its destination in a few days. Postal workers deliver mail directly to homes, businesses, and mailboxes.
