¡La tierra está inclinada!

Describes the frogs, toads, and salamanders of Mexico's Yucatan Peninsula, looking particularly at the wide variety of adaptations found in the few species that dwell there.

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 ...

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...

Desde la aparición de su libro más emblemático, el autor ha recibido miles de cartas y correos electrónicos en los que los lectores le hacían toda suerte de preguntas. Hoy, impulsado por esa "fuerza" que, siempre lo acompaña, el periodista e investigador navarro ha decidido responder públicamente. Y lo ha hecho a cuerpo descubierto, directa y valientemente, sin rodeos ni concesiones. En este texto, Benítez selecciona las 101 preguntas más duras, tiernas, divertidas y profundas. Si su mente no dispone de un mínimo de tolerancia, no lea este libro. Tras un largo y duro peregrinaje por ...