We have been progressing well with our Journey North project. Last Friday we received sunrise and sunset data for the equinox that allowed us to find the longitude of our mystery classes! After studying maps, seasons, the earth's rotation and revolution, time zones, and universal time, we now have latitudes and longitudes for all 10 classes!
The following weeks will be dedicated to checking maps (including Google maps) and following whatever rabbit trails may arise from the geography clues we will receive for the next month. And we're waiting to see when class 3 and class 8 will change their photoperiods. They're hard to see, but one of them still has a 24 hour photoperiod while the other has zero hours.
Our graph will have all the photoperiod lines cross as we now on the other side of the equinox. We found it interesting that the photoperiods far from the equator have non-liner changes.
It was rewarding to see the kids excited about finding their longitudes. They were quite confused at first by universal time, local time, and sunrise but after more discussion they began to figure it out. They were excited to see their hard work pay off.