Everything you need to understand or teach Flatland by Edwin Abbott Abbott.
Set in the world of Flatland, A. Square is a plane form living in a two dimensional reality. His place in the social hierarchy is in the middle class, and he describes effectively the other classes within his world. The dangerous Women, or single lines, the dull yet powerful Isosceles Triangles, or soldiers and laymen, the Equilateral Triangle, or tradesmen, the Nobility class, or Polygon class, and the Circles, or Priests, all combine to make a social order within Flatland. Their existence is complete with class strife, discrimination, alteration, regulation, wars, and power struggles, just as any other society in existence.
When A. Square dreams of another world, Lineland, he is struck by a need to explain to the inhabitants the error of their one dimensional viewpoints. Although A. Square tries repeatedly to explain the second dimension to the inhabitants, the King of Lineland is not convinced. A...
Flatland Lesson Plans contain 139 pages of teaching material, including: