Rastreo del tiempo (Tracking the Weather)

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...

Take a trip to the British Museum as you explore its fascinating objects and geometric shapes! This famous London museum was built for exploration - and for learning geometry. Learn about its history and artifacts as you build your geometry skills. This Spanish math book seamlessly integrates the teaching of math and reading, and uses real-world examples to teach math concepts. Text features include images, a glossary, an index, captions, and a table of contents to build students' vocabulary and reading comprehension skills as they interact with the text. The rigorous practice problems,...

Our toilets toil away for us every day. Yet, they get little thanks for their hard work! When you think of toilets, you probably picture one in your home. But, toilets can be very different around the world. At first glance, a toilet is a simple device, but they are critical for proper sanitation. There are many people worldwide who do not have access to a toilet. Let's dive into an exploration of the history, importance, and inner workings of toilets! This Spanish book combines math and literacy skills and uses everyday examples of problem solving to teach subject area content. The...

The London Eye opened on March 9, 2000. Although it hasn't been there long, the London Eye has already become an iconic symbol of London. No trip to London is complete without a visit to the London Eye! Learn about the history and creation of Europe's tallest observation wheel as you build your arithmetic skills! This Spanish math book combines math and literacy skills, and uses real-life examples of problem solving to teach subject area content. The full-color images, engaging sidebars, practice problems, and math diagrams make learning math relevant and fun. Text features include a table of ...

Willyrex y sTaXx sufren una repentina transformación de origen desconocido. Ahora se han vuelto pequeños y, por tanto, están indefensos: casi cualquier cosa supone un peligro para ellos. Tras el desconcierto inicial y un primer susto, viajarán hasta una gran ciudad y, camufl ados en el bolsillo de un famoso periodista, vivirán una aventura extraordinaria en la que tendrán que emplearse a fondo para salir con buen pie. ¿Serán capaces Willy y sTaXx de detener la amenaza a la que se enfrentan? ¿Lograrán recuperar su tamaño? ¡No te lo pierdas!

Hop on that big red truck for a real adventure! Being a firefighter takes a lot of hard work. Early elementary readers learn about the important responsibilities it takes to be a firefighter--from the fire equipment to living in the fire station. With vivid photos and images, a timetable of firefighting history, informational, Spanish-translated text, and intriguing facts, this book will have readers engaged and eager to learn all about this stimulating occupation. This 6-Pack includes six copies of this title and a lesson plan.

An introduction to the night sky, describing major constellations and the planets of the solar system.

Rusbashov, miembro de la vieja guardia bolchevique y héroe de la Revolución Soviética, ha sido encarcelado acusado de traición al gobiernode Moscú. Es incitado a autoinculparse de una serie de delitos y traiciones que no ha cometido, pero termina por confesar a fin de salvar la Revolución. Esta obra cumbre de la literatura política nos ofrece un testimonio excepcional de la angustia que sufrieron cientos de antiguos miembros del Partido que desaparecieron, fueron encarcelados y juzgados o llegaron a autoinmolarse para salvarlo