diff --git a/openassessment/xblock/grade_mixin.py b/openassessment/xblock/grade_mixin.py
index aeb153ee3f..d1ac50d0d4 100644
--- a/openassessment/xblock/grade_mixin.py
+++ b/openassessment/xblock/grade_mixin.py
@@ -373,7 +373,7 @@ def _get_assessment_part(title, feedback_title, part_criterion_name, assessment)
         )
         if "peer-assessment" in assessment_steps:
             peer_assessment_part = {
-                'title':  self._get_peer_assessment_part_title(
+                'title': self._get_peer_assessment_part_title(
                     get_peer_grading_strategy(self.workflow_requirements())
                 ),
                 'criterion': criterion,
@@ -699,14 +699,14 @@ def _get_score_explanation(self, workflow):
 
     def _get_peer_explanation_sentence(self, peer_grading_strategy):
         """
-        Return a string which explains how grade is calculated for an ORA assessment
-        (which is complete i.e all assessments have been done) based on assessment_steps.
+        Return a string which explains how the peer grade is calculated for an ORA assessment.
+
         Args:
-            workflow (dict): The serialized Workflow model.
+            peer_grading_strategy (str): The grading strategy for the peer assessment.
         Returns:
-            str: Message explainaing how grade is determined.
+            str: Message explaining how the grade is determined.
         """
-        peer_sentence =  _(
+        peer_sentence = _(
             "The grade for this problem is determined by the median score of "
             "your Peer Assessments."
         )