This is not in any art education book, but it seems to work for me this year.
This is for all the slow painters, slow color mixers, slow drawers,
daydreamers, and talkers in my large classes. In first and second grade, the
second class period, I'll set aside two tables for students to finish their
paintings. They're obviously not done, because only 1/4 of their work is
painted. The rest of the class will draw a freebie project that I won't grade.
Something they can get really interested in drawing from the overhead
projector model: Cars, Planes, Trucks or Figures in sports activities, etc.
I've tried this with the older grades (4th and 5th) by going around to tables
and checking their other work, while they draw a free project from the model
on the screen. It's peaceful, quiet and students get that special attention
that they need in enrichment classes that are 30+ students.