¿Qué es la nieve?

Many things can be found in the woods. Some you need to watch out for. Find out about what can be found in the woods. Paired to the fiction title Billy’s Camping Trip.

The Earth is made up of shapes. The shapes make up landforms. Find out about all of Earth’s landforms. Paired to the fiction title A Long Car Ride.

It takes different parts to build a house. The floor is built first. Walls need to be added next. Windows and doors, too. Learn about the steps it takes to build a house. Paired to the fiction title We Have a Box.

Did you kow that Benjamin Franklin wanted a turkey to be the symbol of America instead of the bald eagle? Discover interesting facts about why the bald eagle is important to Americans, how it became a symbol for our country, and more in The Bald Eagle.

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...

Los refranes son fases que circulan entre los pueblos de modo oral y reflejan la sabiduría popular. Carlos Silveyra propone en este libro variantes divertidas de los refranes más conocidos, con remates y salidas inesperadas, propias de la picardía infantil. Este material surge de boca de los chicos de distintas latitudes de nuestro país y fue recopilado por el autor durante sus muchos años de experiencia docente.

Venerado y vilipendiado a un tiempo, Lobachevski se cierne imponente sobre la matemática del siglo XIX. Al igual que sucede a la mayoría de los mitos, el Lobachevski real está oculto por capas de negligencia y desconocimiento. Su fantástica obra, argumentaban muchos, no era otra cosa que herejía matemática, una senda falsa. Lobachevski es una personalidad abrumadora, un soñador empedernido, un hacedor de mundos imposibles pero reales. Lobachevski es, para muchos, una persona desconocida. Este libro cuenta la historia de un hombre sencillo, pero sagaz, obstinado y profundo desde el...