Thanks Bob for your suggestion. Actually an indeed some of the Albers
and Itten color theory excercises are part of the performance task
prompt. In addition, Yale Univeristy Press has just recently put out a
CD Romm of Alber's "Interaction of Color" for the Macintosh computer,
which is also part of the performance task prompt. All of Alber's color
exercises can be done now without all that expensive 'color aid' paper!