The Lunar Mountains activity is a Keystage 3/4 workshop to estimate the height of mountains and crater walls on the Moon. After assembling a mosaic of a quarter-phase Moon, students are asked to measure the length of shadows being cast by a number of vertical features on the lunar surface, and will then use some algebra to estimate their respective heights.
Data for scenario can be found at: http://www.schoolsobservatory.org.uk/activ/lunarmount/moonsaic2