Cómo podemos utilizar la palanca?

Esta excelente biografía del célebre químico francés está dirigida especialmente a los lectores jóvenes y presenta los logros más significativos de este importante científico. Él realizó investigaciones decisivas sobre la fermentación y las bacterias, sostuvo que los gérmenes eran los responsables de las infecciones y desarrolló el proceso de la pasteurización, de enorme importancia para la economía y la salud pública. Además, descubrió las vacunas contra el ántrax y la rabia. También fue el primer director del Instituto Pasteur, fundado en 1888 para investigar los virus y ...

This inspiring biographical series ties in with elementary history, science, and social studies curricula, providing teachers with a valuable interdisciplinary resource. With these books, young readers will discover historical figures who devoted their lives to making the world a better place, and changed the course of history. Text copyright 2004 Lectorum Publications, Inc.

Young students will be enthralled with compelling portraits of famous figures who devoted their lives to improving the world. Includes historical photos and illustrations.

Esta antología encierra en todas sus páginas toda la sensibilidad y la curiosidad de un hombre que sabe contar historias y que utiliza la poesía como medio para transmitirlas. José Hierro escribe sus poemas con palabras sencillas que suenan como una composición musical porque para él la poesía no es presumir con imágenes de listillo.

Groups of American Indians had been living in the Texas region for thousands of years when American settlers decided to expand westward. This captivating book has been translated into Spanish and explores the history of American Indians in Texas and how each group found different ways to live in the region they inhabited. Readers will learn about a variety of tribes, including Karankawa tribe, Jumano, Caddo, Lipan Apache, and Shoshone and discover how they struggled to survive European colonization, the Indian Removal Act, and American expansion. Other topics include the Dawes Act, Indian...

This appealing small format prayer book includes a version of the Lord's Prayer, and other prayers inspired by the words of Jesus, written to be accessible to under 5s. Melanie Mitchell's cuddly illustrations will help little children empathize with the sentiment of the prayers, providing a warm and soft focus as adult and child share these special words together. This book publishes in series with "First Prayers at Bedtime," which includes much-loved traditional prayers and blessings and versified psalms rewritten for young children.

The second edition of Cinema for Spanish Conversation includes the same stimulating exercises and conversation materials that have made the first edition a success among students and instructors alike. The text is designed to be used in courses in which outstanding films from the Spanish-speaking world are used as springboards for classroom Spanish-language discussion. Using high-interest feature films, students hear Spanish as it is spoken in different countries and in a wide variety of situations and are encouraged to listen to and converse about the social and cultural aspects of...