En Toda Era

Over the years, people have looked for ways to improve our imperfect sight. This has led us to the world of optics, which is the study of light and how it travels. What are some of these innovations that have changed how we see the world, and how do they work? Find the answers to these questions with this Smithsonian Informational Text! Created in collaboration with the Smithsonian Institution, this text builds students' reading skills while engaging their curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that guides students through every step...

Readers learn about the various animals that need help and what they can do to make a difference through volunteerism in this engaging book. Discover different programs and organizations that work to protect animals, animal habitats, and endangered species through vibrant images and charts and informational text. Featuring a list of helpful and useful websites, this Spanish-translated nonfiction title encourages readers to take part in animal activism in any way they can--from baking homemade dog biscuits to exploring careers that help sick or injured animals.

While any number of books focus on farm, jungle, or ocean animals, Busca los animales de tu ciudad concentrates on the animals that children see most often—squirrels, ducks, dogs, cats, butterflies, and more. Photo-real illustrations and concise blocks of text provide information on where these animals come from, how they reproduce, and what they eat, providing kids with a greater understanding of the animals that form such an integral part of their cities. Aunque hay muchos libros que se enfocan en los animales de la granja, la jungla o el océano, Busca los animales de tu ciudad se...

Uno de los retos del siglo XXI es alcanzar la plena igualdad de derechos entre hombres y mujeres. Cien años después de que se celebrara por primera vez el Día Internacional de la Mujer, el 19 de marzo de 1911, te invitamos a conocer en las páginas de este libro a un grupo de mujeres que, en épocas en las que no tenían derecho a casi nada, se atrevieron a luchar por sus sueños, y llegaron, incluso, a cambiar la historia.