This tutorial from Trimble is designed to give a good basic understanding of the principles behind GPS without too much technical detail. The site recommends that you follow the tutorial in the order it's presented, especially the "How GPS works" section; the logic of the explanation develops one step at a time. Macromedia Shockwave Player is required to view the tutorial.
Subject: Geography:Geospatial Resource Type: Pedagogic Resources:Overview/Summary Grade Level: General Public, College Lower (13-14), High School (9-12) Theme: Teach the Earth:Course Topics:GIS/Remote Sensing
CMS authors: link to this resource in your page using [resource 16420]