La historia de: los sistemas numéricos: Valor posicional

Discover the different ways that people spend, save, and budget their money. In this Spanish-translated nonfiction title, readers are introduced to important personal financial aspects such as savings accounts, putting together a budget and budget analysis, credit and debit cards, and taxes. Through informational text, vivid photos, and helpful graphs and charts that assist in implementing mathematical skills such as percentages, readers will be encouraged to save and spend their money wisely and responsibly.

This book uses intriguing primary sources to introduce students to the life of George Washington. The detailed, authentic images and simple, repetitive phrases will engage students in reading and build their social studies content knowledge. For use in the classroom or at home, this Spanish book includes a simple glossary and index to introduce informational text features to young readers and provide additional reading support.

George Washington Carver was a skilled botanist who became famous for his work with peanuts and other plants. Readers will discover the captivating life of this incredible scientist in this engaging scientific biography translated in Spanish. Using colorful photos and graphs, children will learn why Carver was known as "The Plant Doctor" as a child and how his work with peanuts, sweet potatoes, and pecans helped change the way people used plants! The helpful glossary and index aid in better understanding of the content, while a simple, interesting experiment leaves Spanish-speaking children...

¿Quién era Darth Vader antes de pasarse al Lado Oscuro? ¿Cuáles son las armas más originales utilizadas por El Joker? ¿Quién es el despiadado agente de Kaos más agradable de todos los tiempos? ¿Y el asesino serial más encantador y culto? ¿Qué héroes y heroínas esconden un pasado oscuro? Este libro reúne los secretos de los más variados villanos: desde los clásicos, como Drácula y Lex Luthor, hasta los expertos en artes oscuras, como Skeletor y Sauron. Sin olvidarnos de brujas, asesinos seriales y de animales que dejaron sus huellas infames en la historia de la ficción....