This checklist offers students the chance to reflect on how they are incorporating the Six Traits into their writing pieces.
You could ask them to choose a 1-2 traits to focus on with each writing, or ask them to reflect on all 6 of the traits. If copied front and back, the student side gives students the chance to rate themselves. The teacher side gives you a chance to offer feedback and comments.
The fourth page of the PDF has a name and # on the top-I copy this onto the student side of the rubric, but I put it on the last page so it could be optional.