La antigua Roma (Ancient Rome)

Wind Power: A waving flag, blowing leaves, a kite soaring through the skyall are moved by wind power. Wind is also our fast-growing source of energy. Find out how wind forms and the different ways we may use it in the future.

En una fría mañana de invierno, aparece el cadáver de un hombre colgando de una de las puertas de la muralla de Visby, en la isla de Gotland. Se trata de Egon Wallin, un reputado galerista. Descartada la hipótesis del suicidio, el comisario Anders Knutas debe, una vez más, dejar de lado sus problemas personales para centrarse en este enigmático crimen. Anders Knutas no tarda en descubrir que la esposa del fallecido tenía un amante y que la pareja no atravesaba su mejor momento. Es ella quien pone al policía sobre una valiosa pista al descubrir en su desván diversos cuadros robados de ...

The need for speed is the motivating factor in this engaging, Spanish book. Readers learn the history of travel from the very slow to the supersonic and beyond, including everything in between. They learn and discover the factors that influence motion for all types of vehicles: land, air, and water alike. They also learn different ways to measure speed and read about energy uses for different vehicles. With greater speed comes greater risk. Readers learn how engineers are always seeking new and better ways to keep people safe as they travel faster and go farther.

Se trata de una carpeta de anillas con 6 cuadernillos divididos por separadores. 1) Para empezar. 2) Unidades didácticas 1, 2 y 3. 3) Unidades didácticas 4, 5 y 6. 4) Unidades didácticas 7, 8 y 9. 5) Cuadernillo de evaluación. 6) Actividades complementarias.

José Antonio Navarro was the most renowned Tejano of his generation. He fought valiantly for Texas' independence from Mexico, became a respected statesman, and even helped write the Constitution of 1845. This biography will inspire your young readers.