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

Esta es una historia que trata de mostrar a niños, jóvenes y a adultos la importancia de cuidar de los diversos seres que constituyen nuestro planeta. Se refiere a una pequeña mofeta que viaja por distintos países en busca de su familia y, durante su recorrido, se describe los exquisitos paisajes, con su flora y fauna. De esta forma, niños, jóvenes y adultos, a través de la descripción, irán haciendo un hermoso recorrido por diversos y maravillosos lugares del planeta.

I arrived in Medellin looking for Adrian, and I met Nahum, Hernan Dario, Jonathan, Victor Manuel, Fernando, Juan Esteban, Ruben Dario, Wilinton, Douglas, Jose Daniel, Angel Antonio, Julio, and Fabio. In Barecelona, I m Santiago, but here at the Jericho Lighthouse Foundation, I m Kaliman, the hero who listens to true stories of wounded, mistreated young men who had been banished from the good life. You can t erase the past, and picking yourself up is no easy feat. But the men at Faro are also Kalimans; they have left the streets, the drugs, and the scraping by behind to begin to look forward...

Take a trip to the world market for an exciting way to learn about standard measurement! This title takes young readers to markets around the world, showing them how to measure common food items with standard measurements. Some things are measured by length! Some things are measured by weight! Children will learn these and other measurement techniques through vibrant images, fun examples, and simple mathematical charts, enhancing their mathematical and STEM skills.

Presents general information about Christmas, including the origins of the holiday and other fall and winter holidays and their traditions, provides instructions for seasonal craft projects, and describes celebrations in different lands.