Ronda que ronda la ronda

Desde los albores de la aviación, a fines del siglo diecinueve, de inmediato resultó evidente que los aviones llegarían a convertirse en armas de enorme poder ofensivo. La confirmación llegó con la Primera y Segunda Guerra Mundiales, cuando el despliegue del arma aérea resultó decisivo en todas las operaciones. Con el tiempo, utilizando tecnologías cada vez más avanzadas, los aviones de guerra, también conocidos como aviones caza, han llegado a convertirse en elementos fundamentales del ataque y la defensa en cualquier conflicto bélico. Este interesante y entretenido libro...

This book introduces readers to the first inhabitants of the Wild West. Readers will learn about Native American struggles over land and the historical and heartbreaking Trail of Tears. Through rich text and historic photographs, readers will learn about how life changed for Native Americans when white settlers started moving west. Engaging text explains important people and events, including the Great Sioux War of 1876 and Crazy Horse. "Truth or Myth?" fact boxes shed light on the real experiences of Native Americans while sidebars provide additional opportunities for readers to deepen their ...

This Spanish-language series presents the complete range of math concepts and skills students are expected to master during the first grade. The series moves sequentially, from easiest to hardest concepts, with each book covering a different math topic. The first volume reviews the math concepts students learned in kindergarten. The next six books cover counting, adding and subtracting, tables and graphs, money, patterns, and measuring. The eighth volume is a summary of the math concepts students have studied throughout the year. Each book presents situations that show the relevance of math...

Invite readers along on the preparations for a soccer tournament! With informational, Spanish-translated text, vibrant photos and charts, children are engaged from cover to cover while utilizing mathematical skills to increase understanding of all aspects of soccer, including sportsmanship and tournaments.