The aim of this interactive teaching and learning resource is to learn to measure the distance between two geographical points on a map and to find out the height difference and the slope between them. With a chosen starting point and destination point, the contour lines are interpreted and a simple calculation is made. Aimed at students aged from 10 to 14 years.  https://www.ign.es/recursos-educativos/descubre-territorio/desnivel.html

This interactive teaching and learning resource helps us to discover the third dimension in mapping. The use of contour lines enables us to represent relief and to read it as a key element in mapping. The method used consists of setting small challenges that are easily answered, with the aim of favouring the learning process.  Aimed at students aged from 12 to 16 years.  https://www.ign.es/recursos-educativos/descubre-territorio/altitud.html