Paradojas y juegos

Identify three-dimensional shapes all around the world in this Spanish-translated e-Book! Figuras en nuestro mundo (Shapes in Our World) gives readers practice identifying familiar shapes like cones, cylinders, pentagons, polygons, and prisms, while familiarizing them with STEM themes and more advanced geometry concepts. Children will learn more about vertices, symmetry, and bases. With each shape, this book gives readers information about an example of the shape, be it a building, a honeycomb, or a tree trunk! With an accessible glossary, clear mathematical diagrams, practical examples, and...

Una niña inteligente y atrevida, Satrapi--hija de Marxistas radicales i viz-nieta del ultimo emperador de Iran--se hace testigo de una niǹez unica envuelta con la historia de su pais.

A foundered Victorian ship looking for the fabled Northwest Passage holds a secret in its icy grave... When Dirk Pitt of NUMAr is almost blown to pieces in a lab explosion, he suspects sabotage. The lab in question belongs to a scientist hoping to use a rare mineral to combat greenhouse gases - but who would want to destroy our one chance to save the planet? However, there are those who will do anything to control such a valuable prize. Pitt's investigations take him to the Arctic in search of a clue to the origins of this precious mineral. There he and NUMAr colleague Al Giordino must battle ...

Read Along or Enhanced eBook: Susan B. Anthony spent her life fighting for equal rights for women. Readers will learn all about her interesting and inspiring life in this engaging biographical reader that features detailed images, informational, Spanish-translated text, and a timeline of Anthony's life.