¡En peligro! (At Risk!) (Spanish Version)

Wildlife scientists study animals and plants, and they learn about endangered animals and how to help save them. Many times animals are tagged to study them and track them. Dr. Ian Stirling studies polar bears and retrieves data by observing them throughout the year. Dr. Jane Goodall studied chimpanzees all her life and learned many interesting things about the way they live, which is much like humans. She believes that we can help animals and promote peace in the world.

Combine valuable fifth grade math and literacy skills in a purposeful way with the Spanish-translated math reader El regalo de cumpleaños del abuelo (Grandpa's Birthday Present). Focusing on the critical skills that 5th graders need to know to advance to the next level, this book incorporates key concepts into an engaging text that showcases math skills needed to create a budget and calculate sale prices. This high-interest nonfiction reader introduces how to convert percentages, decimals, and fractions. Filled with mathematical charts, diagrams, and practice problems, the text features in...

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...

Young children are natural problem-solvers and always looking for answers, especially when it involves interesting animals. This Spanish-language edition of Scaly Swimmers provides young curious readers with striking visual clues and simply written hints. Using the photos and text, readers rely on visual literacy skills, reading, and reasoning as they solve the animal mystery. Clearly written facts give readers a deeper understanding of how the animal lives. Additional text features, including a glossary and an index, help students locate information and learn new words.

El dueño de una empresa farmacéutica se enfrenta a una crisis de ventas. Un colaborador le propone un plan perfecto: robar una cepa de «gripe española», un virulento virus que causó la pandemia de gripe más mortífera de la historia. Cuando la OMS aprobara la creación de la vacuna, el laboratorio ya la tendría lista. Una operación que les permitiría no sólo salvar la situación, sino también hacerse inmensamente ricos.

Caja que contiene 16 pequeños libros en los que se cuentan las cosas que le gusta hacer a un niño: pasear con el perro, salir de merienda, tener peces, mirar por la ventana, etc. En cada libro el niño descubrirá una sensación táctil diferente.