Crisis energética: El futuro de los combustibles fósiles (Energy Crisis: The Future of Fossil Fuels)

From art and architecture to politics, philosophy, and mathematics, "western civilization" owes a great deal to the achievements of ancient Greece, but what do we really know about this long-gone civilization? How did geography influence the politics of the Greek city-states? What's the difference between an agora and an acropolis? This book takes readers several thousand years into the past, when independent city-states ruled the Mediterranean Sea, to find the answers. Full-color photographs and maps, accompanied by accessible text, introduce readers to the many contributions the ancient...

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...

The Pledge of Allegiance was written in 1892 by a man named Francis Bellamy for a children's magazine called The Youth's Companion. Mr. Bellamy wanted the flag to fly above every school in America so that children would feel pride and love for their country when reciting the words to the Pledge of Allegiance. Each stunning photograph of laughing children, sweeping landscapes, or furling flags, is surrounded by bold, colorful borders, making this book a visual celebration of the words of America. Aprende a decir en espanol y en ingles la promesa a la bandera que recitas todos los dias en la...

Una colección de cuentos ilustrados originales y creados para crecer, inspirar y hacer volar la imaginación. #CuentosParaCrecerPorDentro Lo que aprendí de los cuentos es que siempre, siempre, el protagonista encuentra la manera. Lo que aprendí de la vida es que siempre, siempre, podemos crear nuestro final feliz. Cuentos para crecer por dentro es un emocionante viaje de transformación personal a través de los sentimientos, valores y aprendizajes que repararán tus alas y acariciarán tu corazón para siempre. De las creadoras del proyecto Reparando Alas Rotas. Prólogo de Pablo Arribas. ...

La pandemia de marzo de 2020 detuvo abruptamente el mundo. Los trabajadores de primera línea arriesgaron sus vidas para brindar servicios esenciales, mientras que la enfermedad del coronavirus 2019 (COVID-19) devastó familias, escuelas e industrias. ¿Cómo mejoraron las cosas? Esta narración en verso da una visión aleccionadora de ese momento doloroso de la historia.