¿Comen hierba los tigres?

Plants are the living things that have been on the planet longer. How do they manage to protect themselves if they can't move? Explore the different mechanisms that plants use to survive in different habitats.

The first Thanksgiving was a celebration. The pilgrims were thankful for the harvest they planted. Find out what the pilgrims ate for the first Thanksgiving. Paired to the fiction title A Year of Fun.

Recess is a time to go outside, have fun, and play. Spend some time problem solving to make sure everyone has fun at recess! 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 problem solving 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 provides additional learning...

Tells the story, through graphic novel format, of Harriet Tubman and her life as a leader on the Underground Railroad.

La Teoría Cosmobiofísica de los 3 Tercios es un conjunto de teorías originales que describen una nueva racionalidad. Esta teoría explica todos los fenómenos que se mantuvieron sin explicación por la ciencia del Siglo XXI. Incluye los conocimientos científicos pasados y actuales, las intuiciones de la Metafísica de una manera racionalizada, una visión exógena proporcionada por la exocivilización de UMMO y de numerosos desarrollos innovadores realizados en colaboración con expertos internacionales en las diferentes áreas tratadas. La Teoría Cosmobiofísica de los 3 Tercios puede...