Starts today, but it is not too late to get in on the learning!!!
Journey North Mystery Class: A study of sunlight and the seasons
So I have gotten a few emails and many comments on the yahoo group lists about this site being difficult to understand. We have done it a few times now and I have never had a problem with it, but I figured I would post the description that I sent along to one of our local lists -
Ok here is the premise of the program -
So every Monday the student writes down their sunrise and sunset time and calculate the photoperiod for your location, to obtain a base point.
You then go onto the site on Friday and get the sunrise and sunset times for the 10 mystery class locations. You enter them into your log, calculate their photoperiod, and then plot them onto a line graph.
In March they start giving out additional clues that help you to locate the cities.
The teacher guides - Packet 1 - http://www.learner.org/
explain the background info on the photoperiods, longitudinal and latitudinal clues, the earth's pattern of rotations and more.
Hope that makes it a bit more clear.