Desafíos matemáticos

Simple text and photographs describe dragonflies, including their physical characteristics, behavior, and life cycle.

Un libro chic, que te hará reír y encontrar tu lado más cool. Una guía definitiva que te mostrará las ventajas de incorporar a tu vida el look, la actitud y el charme perisino con ironía y descaro...

When winter hits, many people in colder climates spend most of their time indoors. But what do wild animals do? Some animals spend winters hibernating. Beginning readers will learn what hibernation is, why some animals hibernate and others don't, and how hibernating animals prepare for their long sleep. Full-color photographs grab readers' attention and allow them to draw connections to the narrative. Readers will love learning about this mysterious, restful time in some animals' lives.

Simple text and photographs introduce the concept of "skip counting," or counting by groups of a certain number, and present items for practice.