In March 1846, about 4,000 U.S. soldiers arrived at the Rio Grande. According to the U.S. claim, this river marked the southern border of Texas. But the area was actually controlled by Mexico. Mexico's leaders were upset. They believed the United States had invaded their country. Building Our Nation is a series of AV2 media enhanced books. A unique book code printed on page 2 unlocks multimedia content. These books come alive with video, audio, weblinks,...

This book examines how the food that people eat affects the environment, as well as how people can engage in more Earth-friendly eating. This book also includes a table of contents, fun facts, a "That's Amazing!" special feature, quiz questions, a glossary, additional resources, and an index.

Introduces readers to the lives of butterflies. Simple text and colorful spreads make this book a perfect starting point for early readers.

Introduces readers to the lives of dogs. Simple text and colorful spreads make this book a perfect starting point for early readers.

Look at pictures to figure out what event happened first. Additional features to aid comprehension include detailed photographs, a visual answer key, a phonetic glossary, sources for further research, an index, and an introduction to the author.

This adorable book gives young readers an up-close look at baby goats on the farm. Vibrant photos closely match the text to help early readers build vocabulary.

Look at pictures to figure out what item is on top of another. Additional features to aid comprehension include detailed photographs, a visual answer key, a phonetic glossary, sources for further research, an index, and an introduction to the author. Author/Illustrator biography Sources for further research Suggested websites| Index| Glossary of key words. Which person is happy? What object is biggest? Which shape is the circle? Engage readers in...

Introduces readers to the lives of horses. Simple text and colorful spreads make this book a perfect starting point for early readers.

This fun book introduces readers to several words that start with the letter H. Vibrant photos closely match the text to build vocabulary. The book also includes a table of contents, a picture glossary, and an index. This Little Blue Readers title is at Level 1, aligned to reading levels of grades PreK—1 and interest levels of grades PreK—2.

This fun book offers early readers a simple introduction to playing the flute. Vibrant photos closely match the text to help early readers build vocabulary. The book also includes a table of contents, a picture glossary, and an index.