50 Adivinanzas Para Razonar Bien

Various exercises and games designed to practice mental calculation for children between seven and nine years old.

This colorful notebook offers children a series of fun and varied exercises and games to develop their logical reasoning skills.

Black holes are neither holes nor black. They're invisible and packed with matter! Future astronomers will find out many more fascinating facts about these space phenomena with this intriguing book. Carefully crafted text encapsulates the most important information about black holes, such as how scientists locate them and their significance in a star's life cycle. Amazing photographs support critical concepts and inspire a true appreciation of the spectacles of space.

¡Los niños aprenderán las palabras sencillas de español en este libro divertido y ilustrado, por ejemplo, soleado, calor, nublado, loviendo, viento, nevando, frío, hoy y el tiempo!(Children will learn simple Spanish words through this fun illustrated story, for example, sunny, hot, cloudy, raining, windy, snowing, cold, today and the weather!)There are so many different types of weather: sunny, cloudy, rainy, snowy and more! Which one is your favorite and what activities do you like to do? From sledding when it’s snowing to having a picnic on a cloudy day, young learners will enjoy the ...

Presenta una selección de experimentos y actividades diseñados para enseñar los principios de la aviación y de la ciencia del espacio, que incluye fabricar un planeador, construir los instrumentos del vuelo, y diseñar y construir un cohete simple.

A bilingual dictionary offers translations of more than twenty thousand words, examples of different uses in context, cultural information, warnings of false cognates, and explanations of the rules of Spanish grammar and common difficulties.