Students determine their latitude using a protracdtor and/or cross-staff to find the altitude of Polaris.

Middle schoolers engage in a instructional activity which shows them that celestial navigation is the art and science of finding one's geographic position by means of astronomical observations, particularly by measuring altitudes of...

Students study how to use an astrolabe, define terms and understand the relationship between angle and altitude.  In this astrolabe lesson students complete an activity, record their measurements and complete a handout. 

Students measure the height of items using an astrolabe.  In this latitude lesson students construct a sextant and determine height and latitude with it.