This video shows how to orient yourself in the field in a traditional way through the use of a map and a compass, and through the use of map applications for mobile devices. The video includes a test as a quiz to check what has been learned, which can be found in the descriptive text located below it.  https://www.youtube.com/watch?v=xE4edPN3OEo&feature=youtu.be

In this video GNSS technology foundations and use are explained, and also how it is used in mobile  and in other more accurate applications, such as cartography or Earth dynamics knowledge. The video includes a test as a quiz to check what has been learned, which can be found in the descriptive text located below it.  https://www.youtube.com/watch?v=LA3KeMDFIhQ&feature=youtu.be

El sistema productivo: Factores y agentes económicos.

Recurso explicativo básico sobre el Sistema Solar