Nancy, Super! When students can see their teacher is open to reasonable discussion, that adds to credibility, respect, and appreciation for the teacher's efforts. It's a fact, our best efforts (or those of others) can have flaws. It is only fair to make adjustments for legitmate errors. I review tests immedietely following and this gives an opportunity find errors, or appreciate the unintended ambiguity in a question the student may see but I missed. Bad question - revise it or throw it out for next time. Barry Westling