I use Discussions for students to post answers to reading questions. I moderate the posts and approve them after they're due. The goal is for students to be able to refer to their classmates answers to study for tests. But I'd like to be able to privately respond to students' answers. I can't do that on approved or unapproved posts. I'd like to be able to correct students' answers without publishing their errors to the whole class. Right now I'm having to use the feedback area in Grades, and it's not ideal.