I attended a presentation by the Arlington School District that was geared more for elementary classes but it intrigued me and even high school students like to do “make it” projects now and then. They shared a ton of ideas and gave us the url to the files for templates including a pdf file with lesson ideas and instructions for using the templates.

The Link is http://aisd.net/itd/dir_list_sort.aspx

If you follow this link you can also download their Geocaching Documents zip file.