Matemáticas en Marte (Math on Mars)

The asteroid belt between Mars and Jupiter is an intriguing area of our solar system. Scientists have counted over 670,000 known asteroids there, but there could be millions more not yet found. Readers will discover much more about the asteroid belt in this highinterest book, which blends science and math. They'll read about several topics, such as space missions to the asteroid belt and the difference between an asteroid and a planet, and solve associated math problems-just like actual space scientists do!

Una colección de libros que combinan historia del arte con imágenes, espectaculares pop-ups y divertidas actividades para descubrir las obras y los artistas más reconocidos de todos los tiempos. Tras la Mona Lisa y Alexander Calder, ahora ponemos al alcance de los más pequeños la obra de un artista que revolucionó el mundo del arte: ¡el genial Andy Warhol!

Not everyone in the United States is eligible to vote. Voting rules are different in every state. For federal elections, however, voters must have U.S. citizenship to vote. Voters must be 18 on or before the next Election Day to cast their ballot. People must live in their state for a certain period of time before being eligible to vote. All people wishing to vote must be registered by a certain date depending on which state they live in. This book explains who is eligible to vote in U.S. elections as well as who is not eligible to vote. Readers will make connections to the text through...

Mi mundo día a día es un volumen que indaga en lo más cercano: la familia, nuestro cuerpo, los sentimientos, la casa, la escuela, el hospital o el mercado, para conocer mejor nuestro propio mundo. Incluye ejercicios de atención y vocabulario específico.

Ofrece una explicación de las soluciones y mezclas y en qué se diferencian, así como ejemplos de mezclas y soluciones.