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.

Simple text and pictures introduce facts about snowplows and tells what they are used for and why they are important.

Examines the apparent connection between birds and dinosaurs by comparing fossils, dinosaur bones, and modern birds.

SOFIA REYES: Explore fascinating facts about up-and-coming Mexican musician Sofía Reyes! She is on her way to becoming one of the top Latin Pop Stars in the world, but has she always loved music? Let's get to know Sofía Reyes! STARS OF LATIN POP: This photo-filled biography series follows the journeys, careers, and passions of some of the biggest names in Latin Pop. Discover the accomplishments that make them some of the top musicians today! INCLUDES: This 32-page high-interest book for striving readers in grades 4–9 features text in both English and Spanish. Glossary words are defined on ...

Pura Belpré Illustrator Honor 2018 ALA Notable Children's Book 2018 New York Times/New York Public Library Best Illustrated Children's Book of 2017 Barnes & Noble Best Book of 2017 Smithsonian Top Ten Best Children's Book of 2017 Frida Kahlo y sus Animalitos, written by Monica Brown and illustrated by John Parra, is based on the life of one of the world's most influential painters, Frida Kahlo, and the animals that inspired her art and life. Brown's story recounts Frida's beloved pets—two monkeys, a parrot, three dogs, two turkeys, an eagle, a black cat, and a fawn—and playfully...