¿Qué hace a una familia?

It takes different parts to build a house. The floor is built first. Walls need to be added next. Windows and doors, too. Learn about the steps it takes to build a house. Paired to the fiction title We Have a Box.

Animals sing or talk to communicate. They make noise for different reasons. Find out why some animals make certain noises. Paired to the fiction title So Many Classes.

Brush your teeth up and down to keep your teeth healthy and your smile beautiful. Brushing your teeth is easy. Paired to the fiction title My Routine.

The nineteenth century was a time of huge growth and prosperity for California. Although the Gold Rush lasted only seven years, California provided other opportunities for those who emigrated there in search of a better life. This Interactiv-eBook focuses on the history of San Francisco, Los Angeles, Sacramento, and Fresno, and the people and events that influenced their transformations from small towns to booming cities. This nonfiction text builds literacy and social studies content knowledge through the use of intriguing primary source documents like maps, letters, images, articles, and...

En Clima conocerás porqué unas veces hace sol y otras veces llueve, cómo surgen los rayos y los truenos, cómo se llaman los diferentes tipos de vientos y nubes que hay, quién sobrevivía a las glaciaciones... Y, finalmente, encontrarás unas preguntas que seguro que respondes con facilidad.

Alexa y otros ni�os de su escuela en Costa Rica tienen un proyecto especial: ellos est�n criando cocodrilos americanos. Ella nombra a su cocodrilo "Jefe" porque parece que �l est� a cargo de los otros. Alexa le trae pollo y ranas para comer y escribe acerca de su progreso en su diario. Muy pronto, su peque�o cr�o est� tan grande como una barra grande de pan. Se ha convertido en un cocodrilo joven y es tiempo de que Alexia le diga adi�s y que Jefe regrese a la vida salvaje.

Animals hide to avoid being eaten or to sneak up on animals they want to eat. This amazing book introduces children to some basic science concepts. Fascinating photographs feature animals that can change color, or that have different shapes and patterns, so that they can blend into their surroundings. A special section also features animals that do not need to hide.