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!

This Spanish-language series presents the complete range of math concepts and skills students are expected to master during the first grade. The series moves sequentially, from easiest to hardest concepts, with each book covering a different math topic. The first volume reviews the math concepts students learned in kindergarten. The next six books cover counting, adding and subtracting, tables and graphs, money, patterns, and measuring. The eighth volume is a summary of the math concepts students have studied throughout the year. Each book presents situations that show the relevance of math...

En 1965 —año de redacción de Las calles— España era un país que comenzaba a salir de una oscura y larga posguerra para entrar en una primera etapa de confort auspiciada por el turismo y las divisas. Como ocurre en la actualidad, ese bienestar que comenzaba a penetrar en nuestro país, sobre todo en las grandes ciudades, no llegaba a todos por igual. El protagonista y narrador de esta obra es uno de esos hombres a los que la seguridad económica todavía no ha alcanzado. No es que no tenga un trabajo, es que no tiene un buen sueldo. Su empleo le permite sólo, y a duras penas,...

Los personajes de Peppa Pig adoran las vacaciones, ir de día de campo, al parque de diversiones o al acuario, entre otros. En este libro los niños encontrarán un despliegue de actividades con montones de vocabulario para describir lo que más les gusta hacer en los días que no tienen que ir a la escuela.

Science fairs can be a timely assignment, but they can also be fun, rewarding, and sometimes help you to earn scholarships and prizes, too! The recipe for a great science fair or engineering project has just a couple of simple ingredients: a topic you care about and a question you can test. Learn every step of how to make your next science fair or engineering project a winner by following the detailed instructions, helpful hints, and design information in this title. So, don’t be scared, be prepared, and you are sure to have science fair success! This book allows students to understand how...