Let me introduce myself, I am Glenn Dolphin (aka flipper) and I am
currently an Earth Science teacher in upstate New York.
I have been intrigued by the use of historically contextualized
experience to teach content. In particular I have been teaching the
evolution of the theory of plate tectonics. As part of my research for
the unit I am reading Danson's (2006) "Weighing the World..." I am not
understanding part of the book and was wondering if someone could help.
While trying to map large areas, cartographers utilize a method of
triangulation to get accurate measurements of length along, say, a line
of longitude. It isn't explained how this is done (at least not yet,
anyways). I myself am fairly geometrically challenged, and even
teachers that I have approached in the math department are not sure.
So, if there is anyone out there who can help me...I would surely
Earth Science teacher
Earth Science DAL
Union - Endicott High School
Endicott, New York
"Anyone can slay a dragon," he told me,
"but try waking up every morning and loving the world all over again.
That's what takes a real hero."