La historia de los sistemas numéricos: Valor posicional (The History of Number Systems: Place Value)

«Ni en vida de Pessoa ni póstumamente ha aparecido un volumen con el título de El regreso de los dioses, a pesar de que el poeta acariciase la idea de publicarlo desde el otoño de 1917», explica Ángel Crespo, responsable de la edición y la traducción del presente libro. Nos hallamos, pues, ante un acontecimiento de singular importancia: la reconstrucción, en la medida de lo posible, de un libro proyectado por Pessoa, esencial en su trayectoria, y disperso hasta hoy en materiales sueltos. El neopaganismo, el sensacionismo, el sebastianismo son algunos de los principales puntos de...

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...

Trabajadores de mi ciudad (Workers in My City) builds critical literacy skills with this exciting Spanish-translated nonfiction reader. Engage students with fascinating content that will keep them enthralled from the first page to the last. Focusing on different types of workers, children will be introduced to the people who work hard in the city. This informational text features simple phrases, exact text-to-image relationships, vivid photographs, and large font to encourage students to examine different types of city workers. Aligned with state standards, Trabajadores de mi ciudad (Workers...

5KN: Traditional Nonfiction Diverse Books: Feminism Diverse Books: Race & Ethnicity Diverse Books: Social Class Diverse Books: Social Justice SEL: C Social Awareness