You probably use a rubric to assess students. Your rubric is most likely a summative rubric. It tells the students what they did right or wrong (a score of 4/6).
It probably does not show the students what a proficient answer looks like so that they can improve (a formative assessment rubric). Since a formative assessment rubric includes what a proficient example looks like the students move from the theory of the rubric (what I got wrong or the abstract terms in the rubric) to the classroom practice (what does a “good” answer look like in practice) so that the students can change.
In addition, a formative assessment rubric contains suggestions for improvement for any less than proficient area. Students not only see a proficient response but they learn a strategy that will enable them to do that proficient response.
The rubric moves from “a grade” to “an improvement”.
My book, Formative Assessment: Responding to Students, is available through Eye-on-Education.