If your school has the Maps module enabled, you can either contact Digistorm Support on support@digistorm.com to have a map added, or you can add your own map.

Click on 'More' in the main navigation and then on 'Maps'.

Click on 'New Map' to add a map.

Add a name for your map, add the coordinates (use the 'GPS Coordinate Helper' link for assistance) and add your map image, then click 'Save'.