diff --git a/common/djangoapps/student/views/management.py b/common/djangoapps/student/views/management.py
index 847720102a40..f783ddb64739 100644
--- a/common/djangoapps/student/views/management.py
+++ b/common/djangoapps/student/views/management.py
@@ -1558,6 +1558,9 @@ def extras_update_lti_grades(request):
     #SA || letter_grade changes
     letter_grade = request.POST.get("letter_grade", "")
     grade = 0 if letter_grade else request.POST.get("user_grade", "")
+    
+    #AK || feedback/comment changes
+    comment = request.POST.get("comment", "")
 
     try:
         block_data = get_course_blocks(User.objects.get(id = user_id), modulestore().make_course_usage_key(CourseKey.from_string(str(course_id))), allow_start_dates_in_future=True, include_completion=True)
@@ -1568,6 +1571,7 @@ def extras_update_lti_grades(request):
             #Update Grades
             studentmodule.grade = grade
             studentmodule.letter_grade = letter_grade
+            studentmodule.comment = comment
             student_state = json.loads(studentmodule.state)
             student_state["module_score"] = grade
             studentmodule.state = json.dumps(student_state)
@@ -1585,9 +1589,10 @@ def extras_update_lti_grades(request):
                 only_if_higher=False,
                 modified=datetime.datetime.now().replace(tzinfo=pytz.UTC),
                 score_db_table=grades_constants.ScoreDatabaseTableEnum.courseware_student_module,
+                comment=comment,
             )
         except StudentModule.DoesNotExist:
-            studentmodule = StudentModule.objects.create(student_id=user_id,course_id=request.POST.get("course_id"),module_state_key=usage_id,state=json.dumps({"module_score" : grade, "score_comment" : ""}), max_grade= 0 if letter_grade else block_data.get_xblock_field(usage_id, 'weight'), letter_grade=letter_grade)
+            studentmodule = StudentModule.objects.create(student_id=user_id,course_id=request.POST.get("course_id"),module_state_key=usage_id,state=json.dumps({"module_score" : grade, "score_comment" : ""}), max_grade= 0 if letter_grade else block_data.get_xblock_field(usage_id, 'weight'), letter_grade=letter_grade, comment=comment)
 
             log.info("Student module created {0}".format(studentmodule))
             
diff --git a/lms/djangoapps/course_home_api/progress/serializers.py b/lms/djangoapps/course_home_api/progress/serializers.py
index f0eebc703b2b..d4d6f9cbe531 100644
--- a/lms/djangoapps/course_home_api/progress/serializers.py
+++ b/lms/djangoapps/course_home_api/progress/serializers.py
@@ -39,6 +39,9 @@ class SubsectionScoresSerializer(ReadOnlySerializer):
     
     #SA || letter_grade changes
     letter_grade = serializers.CharField()
+    
+    #AK || feedback/comment changes
+    comment = serializers.CharField()
 
     def get_override(self, subsection):
         """Proctoring or grading score override"""
diff --git a/lms/djangoapps/courseware/model_data.py b/lms/djangoapps/courseware/model_data.py
index b755d30fec43..4b8131d28390 100644
--- a/lms/djangoapps/courseware/model_data.py
+++ b/lms/djangoapps/courseware/model_data.py
@@ -916,7 +916,8 @@ class ScoresClient:
     handles the read side of things.
     """
     #SA || letter_grade changes
-    Score = namedtuple('Score', 'correct total created letter_grade')
+    #AK || feedback/comment changes
+    Score = namedtuple('Score', 'correct total created letter_grade comment')
 
     def __init__(self, course_key, user_id):
         self.course_key = course_key
@@ -939,9 +940,9 @@ def fetch_scores(self, locations):
         # attached to them (since old mongo identifiers don't include runs).
         # So we have to add that info back in before we put it into our lookup.
         self._locations_to_scores.update({
-            location.map_into_course(self.course_key): self.Score(correct, total, created, letter_grade)
-            for location, correct, total, created, letter_grade
-            in scores_qset.values_list('module_state_key', 'grade', 'max_grade', 'created', 'letter_grade')
+            location.map_into_course(self.course_key): self.Score(correct, total, created, letter_grade, comment)
+            for location, correct, total, created, letter_grade, comment
+            in scores_qset.values_list('module_state_key', 'grade', 'max_grade', 'created', 'letter_grade', 'comment')
         })
         self._has_fetched = True
 
diff --git a/lms/djangoapps/courseware/models.py b/lms/djangoapps/courseware/models.py
index c531def779ed..e6acab68a9ab 100644
--- a/lms/djangoapps/courseware/models.py
+++ b/lms/djangoapps/courseware/models.py
@@ -123,6 +123,9 @@ class Meta:
 
     #SA || letter_grade changes
     letter_grade = models.TextField(null=True, blank=True)
+    
+    #AK || feedback/comment changes
+    comment = models.TextField(null=True, blank=True)
 
     @classmethod
     def all_submitted_problems_read_only(cls, course_id):
@@ -154,6 +157,7 @@ def __repr__(self):
                 'module_state_key': self.module_state_key,
                 'state': str(self.state)[:20],
                 'letter_grade': self.letter_grade,
+                'comment': self.comment
             })
 
     def __str__(self):
diff --git a/lms/djangoapps/grades/events.py b/lms/djangoapps/grades/events.py
index c7e4172f52a1..0315efae04dd 100644
--- a/lms/djangoapps/grades/events.py
+++ b/lms/djangoapps/grades/events.py
@@ -51,6 +51,7 @@ def grade_updated(**kwargs):
             root_id = create_new_event_transaction_id()
         set_event_transaction_type(PROBLEM_SUBMITTED_EVENT_TYPE)
         #SA || letter_grade changes
+        #AK || feedback/comment changes
         tracker.emit(
             str(PROBLEM_SUBMITTED_EVENT_TYPE),
             {
@@ -62,6 +63,7 @@ def grade_updated(**kwargs):
                 'weighted_earned': kwargs.get('weighted_earned'),
                 'weighted_possible': kwargs.get('weighted_possible'),
                 'letter_grade': kwargs.get('letter_grade'),
+                'comment': kwargs.get('comment'),
             }
         )
 
diff --git a/lms/djangoapps/grades/models.py b/lms/djangoapps/grades/models.py
index 78f04155b518..bfaa1c24abdd 100644
--- a/lms/djangoapps/grades/models.py
+++ b/lms/djangoapps/grades/models.py
@@ -344,6 +344,9 @@ class Meta:
 
     #SA || letter_grade changes
     letter_grade = models.CharField(max_length=255, blank=True, null=True)
+    
+    #AK || feedback/comment changes
+    comment = models.TextField(blank=True, null=True)
 
     # timestamp for the learner's first attempt at content in
     # this subsection. If null, indicates no attempt
@@ -373,7 +376,7 @@ def __str__(self):
         """
         #SA || letter_grade changes
         return (
-            "{} user: {}, course version: {}, subsection: {} ({}). {}/{} graded, {}/{} all, first_attempted: {}, letter_grade: {}"
+            "{} user: {}, course version: {}, subsection: {} ({}). {}/{} graded, {}/{} all, first_attempted: {}, letter_grade: {}, comment: {}"
         ).format(
             type(self).__name__,
             self.user_id,
@@ -386,6 +389,7 @@ def __str__(self):
             self.possible_all,
             self.first_attempted,
             self.letter_grade,
+            self.comment
         )
 
     @classmethod
diff --git a/lms/djangoapps/grades/rest_api/serializers.py b/lms/djangoapps/grades/rest_api/serializers.py
index 5e6db42e29d4..59d848f26888 100644
--- a/lms/djangoapps/grades/rest_api/serializers.py
+++ b/lms/djangoapps/grades/rest_api/serializers.py
@@ -47,6 +47,9 @@ class SectionBreakdownSerializer(serializers.Serializer):
     
     #SA || letter_grade changes
     letter_grade = serializers.CharField()
+    
+    #AK || feedback/comment changes
+    comment = serializers.CharField()
 
 
 class StudentGradebookEntrySerializer(serializers.Serializer):
diff --git a/lms/djangoapps/grades/rest_api/v1/gradebook_views.py b/lms/djangoapps/grades/rest_api/v1/gradebook_views.py
index 0e86badbda65..7841ac384916 100644
--- a/lms/djangoapps/grades/rest_api/v1/gradebook_views.py
+++ b/lms/djangoapps/grades/rest_api/v1/gradebook_views.py
@@ -476,6 +476,7 @@ def _section_breakdown(self, course, graded_subsections, course_grade):
             # 'displayed_value' should maybe be 'description_percent'
             # 'grade_description' should be 'description_ratio'
             #SA || letter_grade changes
+            #AK || feedback/comment changes
             breakdown.append({
                 'attempted': attempted,
                 'category': subsection_grade.format,
@@ -486,6 +487,7 @@ def _section_breakdown(self, course, graded_subsections, course_grade):
                 'score_possible': score_possible,
                 'subsection_name': subsection_grade.display_name,
                 'letter_grade': subsection_grade.letter_grade,
+                'comment': subsection_grade.comment,
             })
         return breakdown
 
diff --git a/lms/djangoapps/grades/scores.py b/lms/djangoapps/grades/scores.py
index 907b3c52894e..57a976420ab6 100644
--- a/lms/djangoapps/grades/scores.py
+++ b/lms/djangoapps/grades/scores.py
@@ -110,7 +110,8 @@ def get_score(submissions_scores, csm_scores, persisted_block, block):
     # Priority order for retrieving the scores:
     # submissions API -> CSM -> grades persisted block -> latest block content
     #SA || letter_grade changes
-    raw_earned, raw_possible, weighted_earned, weighted_possible, first_attempted, letter_grade = (
+    #AK || feedback/comment changes
+    raw_earned, raw_possible, weighted_earned, weighted_possible, first_attempted, letter_grade, comment = (
         _get_score_from_submissions(submissions_scores, block) or
         _get_score_from_csm(csm_scores, block, weight) or
         _get_score_from_persisted_or_latest_block(persisted_block, block, weight)
@@ -131,6 +132,7 @@ def get_score(submissions_scores, csm_scores, persisted_block, block):
         graded = _get_graded_from_block(persisted_block, block) if has_valid_denominator else False
 
         #SA || letter_grade changes
+        #AK || feedback/comment changes
         return ProblemScore(
             raw_earned,
             raw_possible,
@@ -140,6 +142,7 @@ def get_score(submissions_scores, csm_scores, persisted_block, block):
             graded,
             first_attempted=first_attempted,
             letter_grade=letter_grade,
+            comment=comment,
         )
 
 
@@ -178,13 +181,15 @@ def _get_score_from_submissions(submissions_scores, block):
     if submissions_scores:
         submission_value = submissions_scores.get(str(block.location))
         #SA || letter_grade changes
+        #AK || feedback/comment changes
         if submission_value:
             first_attempted = submission_value['created_at']
             weighted_earned = submission_value['points_earned']
             weighted_possible = submission_value['points_possible']
             letter_grade = submission_value.get('letter_grade', '')
+            comment = submission_value.get('comment', '')
             assert weighted_earned >= 0.0 and weighted_possible > 0.0  # per contract from submissions API
-            return (None, None) + (weighted_earned, weighted_possible) + (first_attempted, letter_grade,)
+            return (None, None) + (weighted_earned, weighted_possible) + (first_attempted, letter_grade, comment,)
 
 
 def _get_score_from_csm(csm_scores, block, weight):
@@ -215,7 +220,8 @@ def _get_score_from_csm(csm_scores, block, weight):
 
         raw_possible = score.total
         #SA || letter_grade changes
-        return (raw_earned, raw_possible) + weighted_score(raw_earned, raw_possible, weight) + (first_attempted, score.letter_grade,)
+        #AK || feedback/comment changes
+        return (raw_earned, raw_possible) + weighted_score(raw_earned, raw_possible, weight) + (first_attempted, score.letter_grade, score.comment,)
 
 
 def _get_score_from_persisted_or_latest_block(persisted_block, block, weight):
@@ -235,6 +241,9 @@ def _get_score_from_persisted_or_latest_block(persisted_block, block, weight):
 
     #SA || letter_grade changes
     letter_grade = None
+    
+    #AK || feedback/comment changes
+    comment = None
 
     if persisted_block:
         raw_possible = persisted_block.raw_possible
@@ -252,7 +261,8 @@ def _get_score_from_persisted_or_latest_block(persisted_block, block, weight):
         weighted_scores = weighted_score(raw_earned, raw_possible, weight)
 
     #SA || letter_grade changes
-    return (raw_earned, raw_possible) + weighted_scores + (first_attempted, letter_grade,)
+    #AK || feedback/comment changes
+    return (raw_earned, raw_possible) + weighted_scores + (first_attempted, letter_grade, comment,)
 
 
 def _get_weight_from_block(persisted_block, block):
diff --git a/lms/djangoapps/grades/signals/handlers.py b/lms/djangoapps/grades/signals/handlers.py
index 361c509021b7..3855e2ad8c38 100644
--- a/lms/djangoapps/grades/signals/handlers.py
+++ b/lms/djangoapps/grades/signals/handlers.py
@@ -208,6 +208,7 @@ def problem_raw_score_changed_handler(sender, **kwargs):  # pylint: disable=unus
         weighted_earned, weighted_possible = kwargs['raw_earned'], kwargs['raw_possible']
 
     #SA || letter_grade changes
+    #AK || feedback/comment changes
     PROBLEM_WEIGHTED_SCORE_CHANGED.send(
         sender=None,
         weighted_earned=weighted_earned,
@@ -220,7 +221,8 @@ def problem_raw_score_changed_handler(sender, **kwargs):  # pylint: disable=unus
         modified=kwargs['modified'],
         score_db_table=kwargs['score_db_table'],
         grader_response=kwargs.get('grader_response', False),
-        letter_grade=kwargs.get('letter_grade', '')
+        letter_grade=kwargs.get('letter_grade', ''),
+        comment = kwargs.get('comment', '')
     )
 
 
@@ -236,6 +238,7 @@ def enqueue_subsection_update(sender, **kwargs):  # pylint: disable=unused-argum
     if not context_key.is_course:
         return  # If it's not a course, it has no subsections, so skip the subsection grading update
     #SA || letter_grade changes
+    #AK || feedback/comment changes
     recalculate_subsection_grade_v3.apply_async(
         kwargs=dict(
             user_id=kwargs['user_id'],
@@ -250,6 +253,7 @@ def enqueue_subsection_update(sender, **kwargs):  # pylint: disable=unused-argum
             score_db_table=kwargs['score_db_table'],
             force_update_subsections=kwargs.get('force_update_subsections', False),
             letter_grade=kwargs.get('letter_grade', ''),
+            comment = kwargs.get('comment', ''),
         ),
         countdown=RECALCULATE_GRADE_DELAY_SECONDS,
     )
diff --git a/lms/djangoapps/grades/subsection_grade.py b/lms/djangoapps/grades/subsection_grade.py
index 13d048f4c1b3..31cd34cc3acb 100644
--- a/lms/djangoapps/grades/subsection_grade.py
+++ b/lms/djangoapps/grades/subsection_grade.py
@@ -167,7 +167,33 @@ def letter_grade(self):
                     letter_grades[block_key] = problem_score.letter_grade
                     letter_grade = problem_score.letter_grade
         return letter_grade
-
+    
+    #AK || feedback/comment changes
+    @property
+    def comment(self):
+        """
+        Overrides the problem_scores member variable in order
+        to return empty scores for all scorable problems in the
+        course.
+        NOTE: The use of `course_data.structure` here is very intentional.
+        It means we look through the user-specific subtree of this subsection,
+        taking into account which problems are visible to the user.
+        """
+        comments = OrderedDict()  # dict of problem locations to ProblemScore
+        comment = ''
+        for block_key in self.course_data.structure.post_order_traversal(
+                filter_func=possibly_scored,
+                start_node=self.location,
+        ):
+            block = self.course_data.structure[block_key]
+            if getattr(block, 'has_score', False):
+                problem_score = get_score(
+                    submissions_scores={}, csm_scores={}, persisted_block=None, block=block,
+                )
+                if problem_score is not None:
+                    comments[block_key] = problem_score.comment
+                    comment = problem_score.comment
+        return comment
 
 class NonZeroSubsectionGrade(SubsectionGradeBase, metaclass=ABCMeta):
     """
@@ -317,6 +343,26 @@ def letter_grade(self):
             if problem_score:
                 letter_grade = problem_score.letter_grade
         return letter_grade
+    
+    #AK || feedback/comment changes
+    @property
+    def comment(self):
+        """
+        Returns the letter grade from model
+        """
+        # pylint: disable=protected-access
+        comment = ''
+        for block in self.model.visible_blocks.blocks:
+            problem_score = self._compute_block_score(
+                block.locator,
+                self.factory.course_data.structure,
+                self.factory._submissions_scores,
+                self.factory._csm_scores,
+                block,
+            )
+            if problem_score:
+                comment = problem_score.comment
+        return comment    
 
 
 class CreateSubsectionGrade(NonZeroSubsectionGrade):
@@ -328,6 +374,9 @@ def __init__(self, subsection, course_structure, submissions_scores, csm_scores)
 
         #SA || letter_grade changes
         self.letter_grade = ''
+        
+        #AK || feedback/comment changes
+        self.comment = ''
         for block_key in course_structure.post_order_traversal(
                 filter_func=possibly_scored,
                 start_node=subsection.location,
@@ -342,6 +391,7 @@ def __init__(self, subsection, course_structure, submissions_scores, csm_scores)
             if problem_score:
                 self.problem_scores[block_key] = problem_score
                 self.letter_grade = problem_score.letter_grade
+                self.comment = problem_score.comment
 
         all_total, graded_total = graders.aggregate_scores(list(self.problem_scores.values()))
 
@@ -413,6 +463,7 @@ def _persisted_model_params(self, student):
         persisted model for this subsection grade.
         """
         #SA || letter_grade changes
+        #AK || feedback/comment changes
         return dict(
             user_id=student.id,
             usage_key=self.location,
@@ -425,6 +476,7 @@ def _persisted_model_params(self, student):
             visible_blocks=self._get_visible_blocks,
             first_attempted=self.all_total.first_attempted,
             letter_grade=self.letter_grade,
+            comment=self.comment,
         )
 
     @property
diff --git a/xmodule/graders.py b/xmodule/graders.py
index 0312f49c9f9f..a7984c21b91a 100644
--- a/xmodule/graders.py
+++ b/xmodule/graders.py
@@ -26,7 +26,8 @@ class ScoreBase(metaclass=abc.ABCMeta):
     """
 
     #SA || letter_grade changes
-    def __init__(self, graded, first_attempted, letter_grade=None):
+    #AK || feedback/comment changes
+    def __init__(self, graded, first_attempted, letter_grade=None, comment=None):
         """
         Fields common to all scores include:
 
@@ -39,6 +40,7 @@ def __init__(self, graded, first_attempted, letter_grade=None):
         self.graded = graded
         self.first_attempted = first_attempted
         self.letter_grade = letter_grade
+        self.comment = comment
 
     def __eq__(self, other):
         if type(other) is type(self):