Dinosaurios, garras y crestas

Learn How Dams And Levees Are Built As Well As The Effects They Have On River Systems In A Region, And Places Downstream.

Humans and animals can also make a great team working together. See how horses and the officers who ride them work together to keep our streets safe.

People have been sending mail for a long time. But how they do it has changed a lot! Read about the history of mail as you learn to collect data. This Spanish math book combines math and reading skills and uses real-life examples of problem solving to teach subject-area content. The dynamic images, detailed sidebars, practice problems, and math diagrams make learning data measurement easy and fun. Text features include a table of contents, a glossary, an index, and captions to build vocabulary and increase understanding of math and reading concepts. An in-depth problem-solving section...

Un sencillo y, a la vez, profundo poema envuelto en audaces ilustraciones, nos cuenta que no somos lo que parecemos a simple vista. Nos hace una invitación a aventurarnos más allá de la apariencia para descubrir lo que cada uno realmente es. Un viaje apasionante.

Eleven-year-old Jenny, whose family came from Russia to America to start a new life, meets the famous Russian composer on his 1891 trip to the New World and writes about it in her diary.

El niño Claudio se fija en lo difícil que es decir la verdad y en cuando es mejor callar o decir la verdad.