| 
Viktor LowenfeldCreative and
  Mental Growth
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Scribbling
  stage
First disordered scribbles are
  simply records of enjoyable kinesthetic activity, not attempts at portraying
  the visual world. After six months of scribbling, marks are more orderly as
  children become more engrossed. Soon they begin to name scribbles, an
  important milestone in development.  | 
The
  preschematic stage
First conscious creation of form
  occurs around age three and provides a tangible record of the child's
  thinking process. The first representational attempt is a person, usually
  with circle for head and two vertical lines for legs. Later other forms
  develop, clearly recognizable and often quite complex. Children continually
  search for new concepts so symbols constantly change.  | 
The
  schematic stage
The child arrives at a
  "schema," a definite way of portraying an object, although it will
  be modified when he needs to portray something important. The schema
  represents the child's active knowledge of the subject. At this stage, there
  is definite order in space relationships: everything sits on the base line.  | 
The
  gang stage: The dawning realism
The child finds that schematic
  generalization no longer suffices to express reality. This dawning of how
  things really look is usually expressed with more detail for individual
  parts, but is far from naturalism in drawing. Space is discovered and
  depicted with overlapping objects in drawings and a horizon line rather than
  a base line. Children begin to compare their work and become more critical of
  it. While they are more independent of adults, they are more anxious to
  conform to their peers.  | 
The
  pseudo- naturalistic stage
This stage marks the end of art as
  spontaneous activity as children are increasingly critical of their drawings.
  The focus is now on the end product as they strive to create
  "adult-like" naturalistic drawings. Light and shadow, folds, and
  motion are observed with mixed success, translated to paper. Space is depicted
  as three-dimensional by diminishing the size of objects that are further
  away.  | 
The
  period of decision
Art at this stage of life is
  something to be done or left alone. Natural development will cease unless a
  conscious decision is made to improve drawing skills. Students are critically
  aware of the immaturity of their drawing and are easily discouraged.
  Lowenfeld's solution is to enlarge their concept of adult art to include
  non-representational art and art occupations besides painting (architecture, interior
  design, handcrafts, etc.)  |  | 
  | 
Betty EdwardsCreative and
  Mental Growth
 | 
The
  scribbling stage
Random scribbles begin at age
  one-and-a-half, but quite quickly take on definite shapes. Circular movement
  is first because it is most natural anatomically.  | 
The
  stage of symbols
After weeks of scribbling, children
  make the discovery of art: a drawn symbol can stand for a real thing in the
  environment. Circular form becomes a universal symbol for almost anything.
  Later symbols become more complex, reflecting child's observations on the
  world around him.  | 
Pictures
  that tell stories
At four or five, the child begins to
  tell stories or work out problems with her drawings, changing basic forms as
  needed to express meaning. Often once the problem is expressed, the child
  feels better able to cope with it.  | 
The
  Landscape
By five or six, children develop a
  set of symbols to create a landscape that eventually becomes a single
  variation repeated endlessly. A blue line and sun at the top of the page and
  a green line at the bottom become symbolic representations of the sky and
  ground. Landscapes are compose carefully, giving the impression that removing
  any single form would throw off the balance of the whole picture.  | 
The
  stage of complexity
At nine or ten years, children try
  for more detail, hoping to achieve greater realism, a prized goal. Concern
  for where things are in their drawings is replaced by concern for how things
  look-- particularly tanks, dinosaurs, super heroes, etc. for boys; models,
  horses, landscapes, etc. for girls.  | 
The
  stage of realism
The passion for realism is in full
  bloom. When drawings do not "come out right" (look real) they seek
  help to resolve conflict between how the subject looks and previously stored
  information that prevents their seeing the object as it really looks.
  Struggle with perspective, foreshortening, and similar spatial issues as they
  learn how to see.  | 
The
  crisis period
The beginning of adolescence marks
  the end of artistic development among most children, due to frustration at
  "getting things right." Those who do manage to weather the crisis
  and learn the "secret" of drawing will become absorbed in it.
  Edwards believes that proper teaching methods will help children learn to see
  and draw and prevent this crisis.  | 
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