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.

A trip to Comic-Con becomes an adventure in learning division! Join Zach as he travels to San Diego to attend his very first comic book convention. Along the way, learn about the history of comic books and comic book conventions, and meet the dedicated fans who make Comic-Con one of the most widely attended comic book conventions in the world. This book combines math and literacy skills, and uses real-life examples of problem solving to teach subject area content. The full-color images, math charts and diagrams, sidebars, and practice problems make learning division relevant and fun. Text...

Un virus muy dañino llama a la puerta de los humanos y en muy poco tiempo cambia el mundo por completo. Todo es soledad, silencio, confinamiento. Hasta los animales echan en falta a los niños, sus juegos, sus risas... ¿Será capaz la humanidad de adaptarse a esta nueva situación y, unida, luchar para recuperar la vida? Esta historia refleja todo un año de pandemia y, a su vez, es un canto de esperanza y fuerza.

Set in the 1950s in the Bronx, this is the story of a girl with a dream. Emmy award-winning actress and writer Sonia Manzano plunges us into the daily lives of a Latino family that is loving--and troubled. She is a child living amidst the squalor of a boisterous home that is filled with noisy relatives and neighbors. Each day she is glued to the TV screen that blots out the painful realities of her existence and also illuminates the possibilities that lie ahead. But--click!--when the TV goes off, Sonia is taken back to real-life--the cramped, colorful world of her neighborhood and an...

Featuring TIME For Kids content, La gran bandera (Grand Old Flag) discusses the importance of the American flag. This wordless picture book teaches kindergarteners about America's symbol of freedom as they observe the pictures. Aligned to NGSS standards, this visually engaging book encourages students to describe what is happening using their own words.