Aviación para principiantes

Join the children in this book on a trip to the dentist. Going to the dentist can be fun, especially if you use addition to help you find answers to questions like these: How many teeth do you have? How many times should you floss your teeth each week? Make your next trip to the dentist an adventure with addition.

Incluye cuentos, cantinelas, acertijos y actividades - 10 historias escalofriantes... No es solamente un libro de historias: para los listos, hay juegos y acertijos, y para los más diestros ¡10 actividades que realizar! Qué más divertido que dar vida a estos personajes creando objetos que se les parezcan: un móvil, una huevera, un cofre de tesoros, un tablero, una pizarra… El sapo Baltasar, el lobito Lobisón, el monstruo Veotodo, así como Clémentine, Pedro y Alicia… todos estos personajes singulares comparten con nosotros sus pequeños y grandes miedos a través de unas aventuras...

Presents the life story of the Mexican-American labor leader who helped achieve justice for migrant farm workers by creating a union to protect their rights.

For ages, the idea of machines that think and act on their own has gripped scientists, thinkers, and the general public. This book explores the history of artificial intelligence (A.I.), and how science fiction is quickly becoming science fact. It examines the technologies involved in A.I. and its inevitable effects on work, life, health, and many other aspects of human society. Rooted in history and science, this book provides an inside look at a topic that captivates engineers, scientists, and dreamers, but also raises important ethical issues and challenges how we see ourselves and our...