El gran libro de los records

Biología sin pérdida de tiempo, para maestros y alumnos con prisa, volúmenes I y II, son libros electrónicos creados por médicos y biólogos ampliamente calificados, que han dedicado su vida a la docencia y la investigación. La finalidad de estos libros es proporcionar al docente contenidos sintetizados del programa de biología, libres de información superflua o baladí. Además, incluyen un extenso banco de preguntas con respuestas de opción múltiple, que permiten preparar exámenes con sólo copiar y pegar los reactivos elegidos, así como calificarlos con mucha rapidez, lo cual...

"Amphibians have some of the most interesting life cycles on Earth. The metamorphosis frogs, toads, salamanders, newts, and caecilians go through has many steps that readers need to understand and remember. This book offers a concise overview of the general amphibian life cycle as well as representative examples of the many species within the animal group. Most importantly, the accessible language is paired with diagrams of the steps of the life cycle to augment readers' understanding of this topic often found in the science curriculum."

This nonfiction book explores the history, culture, customs, and beliefs of California's American Indian tribes including the Chumash, Tongva, Hupa, Yokuts, Quechan, and Coso tribes. Detailed primary source images in conjunction with Spanish text provide 3rd grade students with an inviting reading and learning experience as they build their social studies knowledge. This book includes basic informational text features including a glossary, an index, table of contents, and reader's guide. Students will be intrigued by Native American history with this fascinating nonfiction Spanish book.

This timeless tale (now available in Spanish) tells children the story of the crucifixion from the viewpoint of Rex, the tree that became the cross Jesus carried to Calvary. Proud and ungrateful at first, Rex learns a lesson in love from the humble and gentle Jesus. With this story, children come to understand the importance of Jesus' sacrifice and the power of his love. El arbol orgulloso se llamaba Rex y se portaba como si fuera el rey de todos los arboles del bosque. Hasta que un dia sucedio algo que cambio su vida y la de toda la creacion. Este relato imaginario sobre la crucifixion llega ...