Diseño y moderación de entornos virtuales de aprendizaje

A foundered Victorian ship looking for the fabled Northwest Passage holds a secret in its icy grave... When Dirk Pitt of NUMAr is almost blown to pieces in a lab explosion, he suspects sabotage. The lab in question belongs to a scientist hoping to use a rare mineral to combat greenhouse gases - but who would want to destroy our one chance to save the planet? However, there are those who will do anything to control such a valuable prize. Pitt's investigations take him to the Arctic in search of a clue to the origins of this precious mineral. There he and NUMAr colleague Al Giordino must battle ...

English Spanish bilingual book for kids. Perfect for kids studying English or Spanish as their second language. Jimmy, the little bunny, likes to eat candy, but doesn't even want to taste fruits and vegetables. He sneaks into the kitchen to try to find a bag with candies that was hidden inside the cupboard. What happens right after Jimmy climbs up to reach the bag of candy? You will find out when you read this illustrated children's book. Since that day, Jimmy starts to develop healthy eating habits and even likes to eat his fruits and vegetables.

This book is composed of poems-tribute to some bars (and, by extension, to their owners or regents, some of those bars have already disappeared, others have changed owners or regents and others remain) that they have supported for 29 years with their obols.

Describes the ancient giant kangaroo of Australia's distant past that was five times the size of today's largest kangaroos. Discusses how the animal lived and how it became extinct.