La canción del coquí y otros cuentos de Puerto Rico

With every new feat, there is at least one big failure. Learn about some of the biggest technological feats and failures in human history in this fascinating, Spanish-translated nonfiction title that allows readers to discover some of the technological innovations that have made life easier. Featuring detailed images, charts, and graphs, informational text, and intriguing facts, children will be engaged and captivated from cover to cover! This 6-Pack includes six copies of this title and a lesson plan.

Examines prehistoric cave bears, including their biology, hunting techniques, and lifestyles. Discusses possible reasons for their extinction.

Provides a history of the city of Tenochtitlan, describes its eventual burial and rediscovery in more modern times, and details processes used in the excavation of the Great Temple.

La colección de Chuletas es una recopilación de todos los resúmenes, esquemas, cuadros, sinopsis y apuntes imprescindibles para aprender y aprobar la Física sin dificultades. Los estudiantes tendrán todos los conocimientos necesarios sobre Física para Bachillerato, y los profesores hallarán en este libro un eficaz aliado para que sus alumnos comprendan y aprendan estas materias de un modo más ameno.