Animales Al Natural un Zoológico Portátil

Describes what early planes and air travel were like, how planes were developed to travel faster, and presents some pioneers of aviation.

Simple text and photographs show how common shapes can be put together to create new and different ones.

Take a trip to the British Museum as you explore its fascinating objects and geometric shapes! This famous London museum was built for exploration - and for learning geometry. Learn about its history and artifacts as you build your geometry skills. This Spanish math book seamlessly integrates the teaching of math and reading, and uses real-world examples to teach math concepts. Text features include images, a glossary, an index, captions, and a table of contents to build students' vocabulary and reading comprehension skills as they interact with the text. The rigorous practice problems,...

Un enigma oculto durante más de setenta años. Un barco lleno de misterios. No te podrás bajar, aunque quieras. Agosto de 1939. Un enorme trasatlántico llamado Valkirie aparece a la deriva en el océano Atlántico. Un viejo buque de transporte lo encuentra por azar y lo remolca a puerto, tras descubrir que en él tan sólo queda un bebé de pocos meses, y algo más que nadie es capaz de identificar. Setenta años después, un esquivo hombre de negocios decide reflotarlo y repetir, paso por paso, el último viaje del Valkirie. A bordo, atrapada en una realidad angustiosa y contrarreloj, la...