La historia de William Hoy

¿Sientes que últimamente se te olvidan las cosas o que no puedes recordar los nombres? ¿Te cuesta a veces encontrar las palabras correctas para expresarte? No te preocupes, este libro es perfecto para ti. Con el paso de los años comienza a decaer el rendimiento físico e intelectual; es la evolución normal de toda persona. Sin embargo, no tienes por qué resignarte: igual que al ejercitar el cuerpo combatimos el envejecimiento físico, al entrenar nuestra mente rejuvenecemos el cerebro y fortalecemos sus funciones. Gracias a los sencillos ejercicios que contiene este libro, preparados...

Rudy can't find his favorite sweater. He's looked everywhere: inside the house, outside, and in the apartments upstairs and downstairs. In the kitchen, in the bathroom, here, there . . . where could it be? This enchanting story has flaps, pages with cutouts, and numbers to count.

Learn how light pollution prevents us from seeing the stars and causes other problems as well. This Spanish book features a hands-on STEAM challenge that gives insight into how the engineering design process is used to solve real-world problems.

Go-Karts are a fun and thrilling way to hit the road! Invite readers to explore different parts needed to build a go-kart, velocity, speed, and how to stay safe in this exciting motorsport. Using detailed images, charts and diagrams, informational text, and interesting facts in conjunction with mathematic skills and upper-level features such as a glossary of terms, an index, and a chapter format, readers are sure to be engaged and excited from cover to cover of this nonfiction title! This title has been translated into Spanish.