What a bummer! Maybe you could try this: have them do the writing before the
project is completely finished. Then you could quickly edit the writing they
do. I teach about 500 students and can have them all writing at once and edit
the writing before they come back the next week. Keep writing assignments
short, and it doesn't take as long as it might seem to read and make
corrections. However, I can mark through a word to correct the spelling, and
some will write exactly what they had--as if my writing is invisible to them.
It is unreasonable to require this and makes it hard to persuade people to do
writing across the curriculum. Writing across the curriculum is to enhance
learning/understanding of lessons taught. It is not the "other" teachers'
responsibility to make it perfect, just provide opportunities to develop
fluency in organizing thoughts in written form. The fine tuning is for the
language arts teachers, as are the forms tested. I use these activities to
reinforce the traits tested by the state. The students would much rather
write with me because they have so much freedom and fun. Discipline is much
better when they are engaged in these activities as well.