High Sierra Topix

https://www.coursera.org/course/gpslab" onclick="window.open(this.href);return false;

Free on line course.

Not an easy intro course. This is an in-depth course on how it works and the limitations. Be prepared for math and science homework...

might be an interesting course. Too bad I don't have an Android device. Perhaps when my kid gets his Chromebook from school I'll see if it's GPS enabled.

signed up see how it goes I am kind of a techno weanie when I have time