La rata coleccionista

Bored by her daily routine, Olga the sheep thinks outside the flock and ends up creating a wonderful surprise. Includes facts about sheep.

What do solar panels, waterproof clothing, and window coverings have in common? They are technologies that have been adapted based on studying butterflies! Learn what scientists have learned from butterflies with this Spanish book that will ignite a curiosity about STEAM topics through real-world examples. Created in collaboration with the Smithsonian Institution, this STEAM book features a hands-on STEAM challenge that is perfect for makerspaces and that guides students step-by-step through the engineering design process. Make STEAM career connections with career advice from actual...

The second title of Jorge Argueta's popular bilingual Cooking Poems series, celebrates the joys of preparing, eating and sharing food. Now available in paperback, Arroz con leche / Rice Pudding is the second title of Jorge Argueta’s popular bilingual Cooking Poems series, celebrating the joys of preparing, eating and sharing food. From sprinkling the rice into the pot, to adding a waterfall of milk, cinnamon sticks, salt stars and sugar snow, Jorge Argueta’s recipe is not only easy to follow, it is a poetic experience. The lively illustrations by Fernando Vilela feature an enthusiastic...

Explains, in simple terms, the reasons for skin color, how it is determined by heredity, and how various environmental factors affect it.

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...