Desafíos matemáticos

Sesenta autores, desde catedráticos de universidad hasta estudiantes de Secundaria y Bachillerato, nos presentan los cuarenta desafíos que la Real Sociedad Matemática Española propuso con motivo de su centenario.Son cuarenta estimulantes retos que avivan el ingenio. Enfrentándose a ellos, el lector se sentirá un auténtico investigador matemático.Pero no hay que asustarse. No es necesario saber muchas matemáticas. La herramienta esencial para resolver los desafíos es pensar ordenadamente.

This book uses intriguing primary sources to teach students about rules and why following them is important. The primary source images and simple sentences 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.

¡La Dra. Vitamina siempre vive en la cocina, nunca pisa el hospital! Ven a conocer a la Dra. Vitamina, una superheroina que tiene muchas formas y está escondida en casi todos los alimentos que tomamos. Sí, en casi todos menos en esos que en realidad no son alimentos. Una historia divertida y llena de aprendizajes para que los más peques comprendan que su cuerpo es su mejor aliado y que tenemos que cuidarlo para que funcione muy bien y durante muuuuucho tiempo.

What keeps objects from floating out of your hand? What if your feet drifted away from the ground? What stops everything from floating into space? Gravity. As in his previous books, Redwoods, Coral Reefs, and Island, Jason Chin has taken a complex subject and made it brilliantly accessible to young readers in this unusual, innovative, and very beautiful book.

How do you truly engage students in learning history? When students make personal connections to the subject, they’re much more motivated to learn. This Spanish biography provides firsthand accounts of history that give personal insights into historical events. This primary source book focuses on the lives of famous Californians including John Muir, Dorothea Lange, Sally Ride, and Cesar Chavez. Learn about California’s history while building reading comprehension and social studies literacy. With a visually appealing layout, this book features captivating text, fun facts, sidebars, and time ...