Honremos a nuestros héroes: Día de los Veteranos (Remembering Our Heroes: Veterans Day)

Rights are things that make life fair for everyone. But sometimes people are treated unfairly. When this happens, we have to stand up for what is right. We have to become civil rights champions! This Spanish nonfiction book will teach students about civil rights, and introduces them to new vocabulary terms and concepts. Important text features include a glossary, index, and table of contents to engage students in reading as they develop their comprehension, vocabulary, and literacy skills. The Reader's Guide and culminating activity require students to connect back to the text as they develop ...

Te has preguntado alguna vez; ...por qué el corazón es el símbolo del amor? ¿Quién fue san Valentín en realidad? ¿Por qué se representa a Cupido con los ojos vendados? ¿Por qué las novias lanzan el ramo el día de su boda? ¿Por qué regalamos rosas rojas? ¿Por qué se lleva la alianza en el cuarto dedo de la mano derecha? En este libro encontrarás las respuestas a estas y a otras muchas preguntas relacionadas con el amor.

En este e-book aprenderás las bases necesarias para comenzar a escribir tus primeros programas para Arduino. En sus páginas conocerás lo fundamental de la sintaxis y también el uso correcto de las variables y constantes. Además se repasa el uso de las estructuras de control de flujo y, finalmente, la importancia de las entradas y salidas, tanto digitales como analógicas.

"Some things are so huge or so old that it's hard to wrap your mind around them. But what if we took these big, hard-to-imagine objects and events and compared them to things we can see, feel and touch? Instantly, we'd see our world in a whole new way." So begins this endlessly intriguing guide to better understanding all those really big ideas and numbers children come across on a regular basis. Author David J. Smith has found clever devices to scale down everything from time lines (the history of Earth compressed into one year), to quantities (all the wealth in the world divided into one...

Examines the nature of inclined planes and wedges, how they can reduce the amount of force necessary to perform work, and ways in which they are used.