La historia de William Hoy

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.

Probablemente hayas oído hablar de leones y tigres. Quizás los hayas visto en el zoológico. ¿Pero has oído hablar del leopardo nublado? Este tímido miembro de la familia de los gatos es una especie en peligro de extinción. Su timidez hace que estudiarlos sea un desafío para los cuidadores del zoológico y los científicos. Descubra por qué son tan especiales y por qué necesitan nuestra ayuda. Creado en colaboración con la Institución Smithsonian, este Texto Informativo del Smithsonian desarrolla las habilidades de lectura de los estudiantes mientras despierta su curiosidad sobre...

Explore the various islands that make up the Caribbean including the different plants and animals that inhabit this tropical paradise. Bright, dazzling photographs bring the Caribbean to life as readers are exposed to vocabulary related to the unique activities and customs of the Caribbean.

Learn how light pollution prevents us from seeing the stars and causes other problems as well. This Spanish book features a hands-on STEAM challenge that gives insight into how the engineering design process is used to solve real-world problems.