La historia de los sistemas numéricos: Valor posicional (The History of Number Systems: Place Value)

"Estos crímenes se ilustran con una serie de imágenes y alcanzan la categoría de ilustrados porque nos remiten al tejido social de donde proceden. En "Fraternidad", un joven asesino a sueldo bucea en una saga familiar; en "Un tigre al acecho", el amigo fiel aborda el fracaso de una pareja de triunfadores como una sucesión de episodios de película; "Traviata" establece un inesperado paralelismo entre la protagonista de la ópera de Verdi y la soprano que representa el papel; y en "Viaje de inspección por la zona norte", un personaje salda cuentas con quienes lo han convertido en un...

Introduces fruits, uses simple comparisons to explore this group, and offers suggestions for healthy eating.

English Spanish Bilingual children's book. Perfect for kids learning English or Spanish as their second language. Jimmy the little bunny goes to the beach with his family. There he learns about the importance of helping others. When Jimmy's sandcastle is destroyed by the wave, they work together to build the bigger and better one. Everything works out better when we help each other. Jimmy el conejito va a la playa con su familia. AhI aprende sobre la importancia de ayudar a los demAs. Cuando el castillo de arena de Jimmy es destruido por una ola, trabajan juntos para construir uno mAs grande...

Computer science is all around us, at school, at home, and in the community. This book gives readers the essential tools they need to understand the computer science concept of algorithms and procedures. Brilliant color photographs and accessible text will engage readers and allow them to connect deeply with the concept. The computer science topic is paired with an age-appropriate curricular topic to deepen readers' learning experience and show how algorithms and procedures work in the real world. In this book, readers will learn how flowcharts can be used to teach people how to complete a...