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.

Trabajadores de mi ciudad (Workers in My City) builds critical literacy skills with this exciting Spanish-translated nonfiction reader. Engage students with fascinating content that will keep them enthralled from the first page to the last. Focusing on different types of workers, children will be introduced to the people who work hard in the city. This informational text features simple phrases, exact text-to-image relationships, vivid photographs, and large font to encourage students to examine different types of city workers. Aligned with state standards, Trabajadores de mi ciudad (Workers...

HIGH-INTEREST, LOW-LEVEL: Reluctant readers will be engaged from beginning to end as they explore the responsibilities and skills of the catcher in this 32-page nonfiction book. Side-by-side English and Spanish text and vivid, exciting photos show readers what it takes to fill this key position in baseball and softball. SPORTS BOOK FOR KIDS: Catchers squat and they throw. They often call the shots. But most importantly, they catch the ball! From catching fastballs to throwing out base runners, learn why catchers have the toughest job in baseball and softball. INCLUDES: Readers will be hooked...

Desmond Tutu cuenta más de cincuenta de sus relatos bíblicos favoritos, destacando artísticamente el deseo de Dios de que todos los seres humanos se amen unos a otros y hallen la paz y el perdón en su corazón.

Muddy Creek in Edgewater, Maryland is the site of a major makeover. The land around the stream has worn down. Find out what caused Muddy Creek to erode, and the many steps involved in saving it. Created in collaboration with the Smithsonian Institution, this Smithsonian Informational Text builds students' reading skills while engaging their curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that guides students through every step of the engineering design process, from the initial research and brainstorming sessions, through the design and testing ...