GeoExplorer has come to discover the Earth through games to learn astronomy, the interior of the Earth, geography and maps. Draw, colour, cut and learn more with links to other resources. Aimed at students aged from 6 to 12 years.  https://www.ign.es/web/resources/acercaDe/libDigPub/Geoexplorer_en.pdf

GeoExplorer ha venido a descubrir la Tierra a través de juegos para aprender astronomía, el interior de la Tierra, geografía y mapas. Dibuja, colorea, recorta y aprende más con enlaces a otros recursos. Dirigido a estudiantes de entre 6 y 12 años.  https://www.ign.es/web/resources/acercaDe/libDigPub/Geoexplorer_es.pdf

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