Flora Y Tecla / Milly and Tilly

Learn more about the renowned British scientist, professor, and author who spent his entire career trying to answer the question: "Where did the universe come from?" Stephen Hawking was born exactly three hundred years after the death of the scientist Galileo, so maybe it was written in the stars that he would become a famous scientist in his own right. Although he was diagnosed with a neurological disease at age 21, Stephen did not let the illness define his life. Known for his groundbreaking work in physics, and identified by his wheelchair and computerized voice system, Stephen continued...

¿Qué tan preparado estás para criar a tu bebé durante sus primeros meses de vida? Pocas cosas pueden comprarse con los primeros meses de vida de un bebé, pues son los que tendrán el mayor impacto en su desarrollo e infancia. Sin embargo, tanto los padres primerizos como los veteranos concuerdan en que el primer año de vida de un bebé es de las etapas más difíciles de enfrentar. Con esta guía, aprenderás lo siguiente: Cómo alimentar a tu bebé apropiadamente para promover su desarrollo y salud en su primer año de vida. Cómo lograr que tu bebé tenga buenos hábitos de sueño y...

Book Features: • Ages 5-8, Grades K-2 • 24 pages, 8 inches x 8 inches • Simple, easy-to-read pages in Spanish with full-color pictures • Includes a glossary, index, and an engineering design activity • Supports NGSS Problem-Solving Designs: In Mi Biblioteca de Ingeniería: Diseño y Construcción para Ayudar, kindergarten—second graders learn about some of the most fascinating designs that help people every day! Engineering Made Fun: Engineers solve problems to help society function better. Young readers learn about some of the amazing designs and inventions created to help people ...

Before there was the U.S. Constitution, there were the Articles of Confederation. Readers discover the story behind the first written constitution of the United States—from the factors that inspired its creation to the reasons why it was replaced. The detailed main text is enhanced by informative sidebars and graphic organizers. Historical images, including relevant primary sources, allow readers to immerse themselves in this historical period. Readers are given the chance to thoroughly examine elements of the original document, making them feel like true historians. They’re sure to enjoy ...