El gran libro de las matemáticas del Ogro feroz

As a land that’s constantly in flux, Earth sometimes reveals clues about the plants, animals, and other organisms that lived long ago. Fossils teach us much about what life was like millions of years ago, answering the questions of how Earth changed and maybe even why it changed. This essential Earth science topic is thoroughly explained through manageable text, fact boxes, informational charts and diagrams, and a glossary and index. Readers will become young Earth detectives by the time they’re through with this text!

"Campus Sur es un nuevo curso intensivo de español para universidades creado: •Para los que trabajan en el ámbito universitario y quieren un manual eficaz en ese contexto. •Para quienes buscan un enfoque panhispánico: los países de América Latina y España están ampliamente representados. •Para los profesores que quieren experimentar técnicas de clase invertida (flipped classroom). Las unidades permiten que los alumnos y las alumnas trabajen previamente de forma autónoma y luego, en el aula, de manera colaborativa. •Para los que buscan trabajar con documentos variados,...

El libro de niños de Nancy Hahn “Un Muchacho Perdido”, diciendo la historia de la vida de Bol Malual. Es el primer libro de niños para dirigirse a la historia de los Muchachos Perdidos de Sudán.

Roam the North American wilderness with some of our continent's most fascinating canines. Stunning color photos capture these wild animals in their natural surroundings as the text describes each canine's habitat, physical features, and special abilities. Explore the social lives of these captivating creatures, their amazing survival techniques, reproduction, development, and interaction with humans. Discussions of threats to habitat and hunting promote environmental awareness in young readers.