Early Schematic or Preschematic X-ray Chicken and Eggs 

to>scribble information
to>preschematic picture
preschematic information
to>schematic information
to>thinking picture
to>x-ray picture
to>quest for order pictures

Also expect foldover and quest for order
photo by Marvin Bartel
All rights reserved.  This page © Marvin Bartel.  
For permission to make copies or handouts, e-mail the author. 

Many authors and researchers in art education have written about the stages of artistic development.  
Viktor Lowenfeld made many observations and described the stages in his book, Creative and Mental Growth.  The 4th  edition of Creative and Mental Growth by Viktor Lowenfeld and W. Lambert Brittain. 1964 includes a  summary with charts describing the development stages in Chaper 13. pages 395 to 402.