Nuestro medio ambiente en constante cambio (Our Ever-Changing Environment)

Introduce students to the structure of the United States government. With this nonfiction Spanish-translated resource, readers will learn about the three branches of government, and the purpose of this separation of powers. Primary source images and supporting text engage readers and help them better understand the content.

Introduce students to the structure of the United States government. With this nonfiction Spanish-translated resource, readers will learn about the three branches of government, and the purpose of this separation of powers. Primary source images and supporting text engage readers and help them better understand the content.

Teach students about trading and buying goods and services. In this Spanish-translated book, readers will learn about supply and demand, and learn the difference between wants and needs. Featuring images that support the informational text, students will build social studies content-area literacy and reading skills.

Las matemáticas en la vida cotidiana de los niños y niñas y los juegos matemáticos en la escuela conforman el enfoque del libro, y permiten conocer, y sobre todo descubrir, a partir de las múltiples actividades posibles, los diversos conceptos matemáticos que los niños de estas edades pueden hacer suyos. La autora nos muestra a un niño capaz, lleno de recursos y de intereses por aprender, un aprender sobre el que siempre quedan interrogantes, sobre cómo aprende, y sobre de qué o de quién aprende. Y también nos muestra a un maestro capaz, capaz de escuchar al niño, de descubrir en ...

Presents a typical day of a bulldozer driver, with the safety equipment he puts on, the levers, beeper, and blades he uses in its operation, and what he does to get the bulldozer ready for the next day.

Readers will learn about the important relationship between producers and consumers as well as buyers and sellers and how they all work together to create a healthy economy. This instructive volume defines basic economic concepts like goods and services and explains production with examples of the different types of production. It also covers the primary and secondary industries that produce goods. Concepts such as marketing and advertising are also covered, for a well-rounded view of this fascinating aspect of the economy.

Libro basado en El romance español y el corrido mexicano de Vicente T. Mendoza. Durante la Revolución, el ferrocarril cumplió un papel decisivo, por muchas razones. En este libro se cuenta su historia tomando como base una serie de corridos anónimos extraídos de la recopilación que realizó Vicente T. Mendoza. Las canciones narran diferentes momentos de la lucha armada. A través de los versos conocemos a los personajes impopulares y populares para el pueblo. Se recorre desde el triunfo de Francisco I. Madero en 1911, hasta la llegada de Álvaro Obregón a la presidencia. Se cantan las...