For someone who recently read a lot about Einstein and his work and learn what his theory actually accomplishes, this was a great read. I am glad I took 15 minutes of my time to read this paper. Personally I feel it sucks that almost every educated person can recollect his famous equation but a small fraction actually know what it is all about and how his work changed our understanding of space and time. I recommend anyone interested to learn more can check out this book by Author James Malcolm Bird , its on amazon [1] and free on google play [2].
I particularly liked the contrast between the algebraic and geometrical views of the world.
The simple illustration of a 'singularity' arising from the slope of a vertical line (y = mx+c with m=infinity) compared with the geometrical view where such a line is simply a vertical line which can be transformed into any other line by rotating will be useful in teaching!
[1] - http://www.amazon.com/Einsteins-Theories-Relativity-And-Grav...
[2] - https://play.google.com/store/books/details/James_Malcolm_Bi...
edit: for formatting