Time map of the Spiral Curriculum

The spiral of the evolution of consciousness, from prehistoric times to the present, is mapped onto the spiral of the grades, Pre-K through 12. Thus there are two time-scales overlapping one another on the spiral of the Ross School Curriculum. Here we relate the two time scales in a simple graph. As the grades Pre-K through 4 are not yet in operation, and they are all identified with rather long periods of prehistory, we begin our graph with grade 5, at 3000 BC and the beginning of history. 
+2000 +2000------------------------------------------------------O
           +1900-----------------------------------------------O D/X transition-------
           +1700---------------------------------------O G/D transition
           +1500--------------------------------O


+1000                  GEOMETRIC
           +0800-------------------------O (algebra)

           +0350------------------O


-+000


           -0500 R/G transition-------------------------------------------------------


-1000 -1000----------O


                           ARITHMETIC


-2000





-3000 -3000 -O
--------------|----5---|---6---|---7---|---8---|---9---|---10--|---11--|---12--|--->
Revised 08 August 1998 by Ralph H. Abraham