You can use the lessons which have been successful in the past, but
try to find connections to all four disciplines. You won't always hit
them equally, but make the students aware of tie ins wherever you can.
Have you seen Irene Glaser's article in the Maryland Art Education GAZETTE?
Its a very helpful model. Request volume 13, #3 from John C. Howland,
Mt. Hebron High School, 9440 Route 99, Ellicott City, MD 21042.