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 ...

Antes de que Kamala Harris se convirtiera en abogada y senadora de Estados Unidos, fue una niña a la que le encantaban los superhéroes. Y cuando los buscaba a su alrededor, ¡se sorprendía al encontrarlos en todas partes! Los había en su familia, entre sus amigos, incluso en su misma calle; los superhéroes estaban dondequiera que ella miraba. Y esos superhéroes le enseñaron que todo lo que se necesita para ser un superhéroe es dar lo mejor de ti. En esta motivadora y expresiva memoria, que va directa al corazón de los niños, Kamala Harris lleva a los lectores a través de su vida, y ...

Examines The Properties Of Matter, The Use Of Energy From Gasoline Or Batteries, And Various Other Sources Of Energy.

This Spanish-translated nonfiction title gives children an in-depth look at what a career as a police officer is like. Readers will learn about various aspects of life as a police officer--from being accepted into the academy to keeping streets safe. Readers will learn what a typical day in the police academy is like as well as a day in the field as an officer. Through helpful charts and diagrams and colorful images in conjunction with informational text and stunning facts, readers discover important aspects of keeping communities safe, including what's inside the patrol car, K-9 units,...