La fiebre del oro (The Gold Rush)

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...

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...

Rain, sunshine, warm fronts, and cold fronts. Have you ever listened to a weather report? Knowing the weather can help us plan ahead. But reporters aren’t the only ones who can track weather. You can, too! This nonfiction Spanish book explores the subject of meteorology in depth, and introduces students to important scientific concepts and vocabulary like anemometer, barometer, air pressure, warm front, cold front, rain gauge, probability, Celsius, Fahrenheit, and more. The colorful images, diagrams, sidebars, and text features will keep students connected to the text. Aligned to state and...

Students will develop their math skills while engaged in reading about the importance of honeybees. This nonfiction math book combines math and literacy skills, and uses real-life examples of problem solving to teach subject area content. The full-color images, intriguing sidebars, practice problems, and math diagrams make learning place value relevant and fun. Text features include a table of contents, glossary, and index to increase understanding of math and reading concepts. An in-depth problem-solving section provides additional learning and practice opportunities while challenging...

Hoy estoy... Celoso es un libro de la serie «Hoy estoy...», una colección de cuentos para trabajar las emociones con los más pequeños. Una historia sencilla, dulce y tierna para ayudar a nuestros hijos a gestionar y superar los CELOS. Llamamos «celos» a esa reacción de miedo que sentimos cuando tenemos la sensación de estar perdiendo o de haber pedido algún beneficio emocional (amor, afecto, atención, cariño, reconocimiento...), sea esta situación real o imaginaria. Y hablamos de BENEFICIO porque entendemos que nos pertenece o que lo merecemos. En los niños, este sentimiento...

The skeletal system is made up of bones. They support and protect your body and help it work. Some bones help you run, or pick up a pencil; others protect organs, like the skull, which protects your brain. Learn about bones, joints and more in this informative book.

Calcuta, 1932: El corazón de las tinieblas. Un tren en llamas atraviesa la ciudad. Un espectro de fuego siembra el terror en las sombras de la noche. Pero eso no es más que el principio. En la víspera de cumplir 16 años, Ben, Sheere y sus amigos deberán enfrentarse al más terrible y mortífero enigma de la historia de la ciudad de los palacios.

Introduces Iran, including the geography, people, education, rural and urban life, housing, food, work, and amusements, along with other information about the country.