Cómo funcionan las ruedas y los ejes

When many think of the Constitution, they think of the Founding Fathers: Thomas Jefferson, John Adams, Benjamin Franklin...but neither Jefferson nor Adams even signed it. Facts like this will surprise readers, while further information will enlighten them about both the crucial document called the U.S. Constitution as well as about its creation and ratification. This essential volume is a significant addition to any elementary social studies collection.

Young detectives will learn data analysis and probability while they are engaged in reading about crime scene investigations. Used in the classroom or at home, this nonfiction Spanish text includes mathematical charts to help students practice calculations and become more confident in their data analysis skills. With a glossary, an index, dynamic images, age-appropriate content, and easy-to-read text, students will build their math and reading skills while they are engaged in reading high-interest topics.

LA ENCICLOPEDIA BRITÁNICA PARA NIÑOS. APRENDE Y DISFRUTA CON SU FORMATO REGALO. ¿Estás preparado para una aventura alucinante en el mundo animal? Adéntrate en las maravillas de la naturaleza con la increíble Enciclopedia Británica, la enciclopedia más reconocida y rigurosa del mundo. ¿Sabías que los primeros indicios de vida son de hace más de 3.700 millones de años? ¿O que más del 99,9 % de las especies que en algún momento vivieron se han extinguido? ¿Y que el tiburón de Groenlandia puede vivir más de 500 años? Conocerás a los animales más impresionantes, explorarás...

Do you think a snake would make a good pet? This fact-filled, Spanish-translated title uses bright, vivid images in conjunction with descriptive and informative language to let readers decide if they think these cold-blooded reptiles would make good pets. This 6-Pack includes six copies of this title and a lesson plan.