I just had the wonderful experience of attempting to post a constructive comment on a student's blog. I say attempting, because I am not sure that I have chosen the blog correctly and that it is the student's post and not the teacher's post I have commented on. I chose a reading club post.
This was hard for me to do. I know that words can be very powerful while at the same time they can be very harmful also. Keeping this in mind, it made me a little nervous because I didn't want to say anything that might hurt instead of helping.