Taller de matemáticas

Why did the Civil War begin? Which states were part of the Union and which were part of the Confederacy? Readers will learn the answers to these questions and more as they move through this fascinating nonfiction Spanish-translated title. The easy-to-read informational text, engaging facts, and vivid images and illustrations help highlight some of the aspects that led up to the Civil War, including slavery, the Underground Railroad, abolitionists, the Fugitive Slave Act, the Dred Scott Decision, and the Lincoln-Douglas debates. The accessible table of contents works in conjunction with the...

Thomas Edison is considered by many to be one of the greatest inventors of all time. His creations changed the world, but there was more to his life than just his inventions. Readers of this engaging volume will learn all about the man behind the innovations. This fascinating biography introduces important subjects and encourages a further interest in history. Concise and accessible text paired with vibrant photographs is sure to captivate audiences of many ages and levels.

"Este libro gigante con paginas desplegables y atractivas fotografias hara que tu hijo desarrolle su destreza manual y aprenda sobre todo tipo de maquinas"--From publisher's description.

"Nada con medusas replandecientes, descubre el misterioso fondo marino y conoce los increíbles unicornios marinos. Tiburones, ballenas, tortugas o extrañas criaturas de las profundidades nadan a través de las páginas de este precioso libro que combina magníficas ilustraciones y fotografías. Los jóvenes lectores conocerán la extraordinara vida que esconden los océanos y mares de todo el mundo y descubrirán cómo ellos mismos pueden ayudar a cuidarlos. Un fascinante viaje submarino que muestra los asombrosos océanos, qué plantas y animales viven en ellos y cómo podemos ayudarlos....