Obedecer las reglas

¿Qué significa migrar? Descubra qué animales migran y por qué migran a través de fotografías detalladas y texto simple. What does it mean to migrate? Discover which animals migrate and why they migrate through detailed photographs and simple text.

Summarizes how water changes from a solid to a liquid and back again, and introduces related facts such as that water freezes at thirty-two degrees Fahrenheit and that ice floats.

"Developed by literacy experts for students in grades three through seven, this book introduces young readers to the geography and culture of Nicaragua"--

How does a frog grow? Beginning as a tiny egg and then a tadpole, a frog stays mostly in the water until it is fully grown.

When their attempt to steal a heavy bag from an old woman they believe to be a witch ends with the woman capturing one of their number, a close-knit group of boys living in the streets of Bogotá goes to the rescue, only to find themselves in an unexpected place.

La pequeña Minnie Makepiece deseaba ganar un viaje de vacaciones a Disneyland contando la historia más larga, por lo que se dirigió a hablar con su abuelo Makepiece.