Tratamiento digital de señales

Hurricanes plague the tropics from June through November. Some years bring just a handful of storms. Other years, meteorologists run out of names because there are so many. In this Spanish title, readers learn how and where these storms form and the dangers they pose to the land and people who live in Gulf and Atlantic coast regions. This 6-Pack includes six copies of this title and a lesson plan.

This starter volume uses everyday examples such as a baseball and a beach ball to demonstrate the contrast between hard and soft objects.

From the water they drink to the trees they climb, kids are connected to the natural world in big and surprising ways. With simple, poetic text and exquisite artwork, this book does more than introduce kids to these connections. It sparks their imagination. It starts conversations, and it delights all ages. Combining the ideas of environmental author Elin Kelsey with the inventive three-dimensional dioramas of artist Soyeon Kim, this remarkable picture book reveals ties that are often sensed yet seldom explained. And in a world dominated by technology, never have these incredible connections...

Como la primera mujer de la raza negra y con raíces en Asia Meridional que se convierte en vicepresidenta de los Estados Unidos, así como la segunda mujer negra en la historia elegida al Senado de los Estados Unidos, Kamala Harris está abriendo nuevos caminos en su ruta hacia el escenario nacional. Pero, ¿de qué manera alcanzó sus metas? ¿Qué valores e influencias la guiaron e inspiraron sobre la marcha? En esta edición de sus memorias para lectores jóvenes, conocemos cómo su familia y su comunidad influyeron en la vida de la vicepresidenta Harris y vemos qué la llevó a descubrir ...