Obrero de Construcción

A simple introduction to the work of teachers, including the different types, equipment used, training, daily life, and other aspects of their job.

What do you do if you find yourself stranded at sea? This useful, Spanish-translated nonfiction book gives readers the information they need in order to survive at sea. With essential tips and instructions, helpful diagrams and images, a bibliography, and a list of other useful websites, readers will learn everything they need in order to survive--from the dangers of hypothermia, what to do if there's only saltwater available, and other useful survival skills. This 6-Pack includes six copies of this title and a lesson plan.

Sesenta autores, desde catedráticos de universidad hasta estudiantes de Secundaria y Bachillerato, nos presentan los cuarenta desafíos que la Real Sociedad Matemática Española propuso con motivo de su centenario.Son cuarenta estimulantes retos que avivan el ingenio. Enfrentándose a ellos, el lector se sentirá un auténtico investigador matemático.Pero no hay que asustarse. No es necesario saber muchas matemáticas. La herramienta esencial para resolver los desafíos es pensar ordenadamente.

Imagine traveling at half the speed of a jet plane without ever leaving the ground! Students will discover the technology that makes such speeds possible, from special tracks and safety precautions to aerodynamically designed trains. What are the limits to the speed of trains? What imposes those limits? Students also will read about the future of passenger train travel, from flying trains to trains that use huge magnets to levitate inches or centimeters off the track. Some trains safely reach speeds of more than 200 mph!

Imagina el verano perfecto, lejos de un hogar en el que no estás a gusto, en un país diferente y lleno de posibilidades; viviendo en mitad del campo y en compañía de una familia que te quiere, enamorándote como nunca lo has hecho. Ahora imagina que un día estallan las bombas y que, junto a quien es el amor de tu vida, tienes que aprender a sobrevivir en medio de una guerra sin sentido. Puedes imaginarlo o leer esta novela.