Azul

Many people depend on blue crabs from the Chesapeake Bay for their jobs. But overfishing and changes in the blue crabs' habitats have reduced their numbers. Learn how scientists have stepped in to study these blue beauties so that they can keep a healthy crab population. Created in collaboration with the Smithsonian Institution, this Smithsonian Informational 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 of the engineering design process and is...

La celebración de navidad contiene un lenguaje universal, es aquella celebración que se festeja dentro de todos los hogares del mundo. Los clásicos villancicos vuelven a escucharse en una vela de nochebuena, las estrellas vuelven a iluminarse en el cielo, el fervor de diciembre estremece nuestros cuerpos, y las familias regresan al lugar de origen para reencontrarse una noche más. La importancia de la navidad es fundamental dentro de nuestras vidas, simplemente es la consolidación de los perpetuos valores: fraternidad, voluntad, libertad, esperanza, empatía y amor. Aquellos valores que...

Learn the history of number systems with this engaging Spanish book! This text combines mathematics and literacy skills, and uses practical, real-world examples of problem solving to teach math and language arts content. Students will learn place value while reading about the number systems of the Egyptians and Romans, and also learn important vocabulary terms like cuneiform, binary systems, roman numerals, and more! The full-color images, math charts, and practice problems make learning math easy and fun. The table of contents, glossary, and index will further understanding of math and...

"This photo-illustrated book for early readers describes the wetland ecosystem. Includes picture glossary and index"--