diff --git a/lms/djangoapps/instructor/tests/test_api.py b/lms/djangoapps/instructor/tests/test_api.py
index c5b1b21b52..a32217ab30 100644
--- a/lms/djangoapps/instructor/tests/test_api.py
+++ b/lms/djangoapps/instructor/tests/test_api.py
@@ -512,7 +512,7 @@ class TestInstructorAPILevelsDataDump(ModuleStoreTestCase, LoginEnrollmentTestCa
     def test_get_student_progress_url(self):
         """ Test that progress_url is in the successful response. """
         url = reverse('get_student_progress_url', kwargs={'course_id': self.course.id})
-        url += "?student_email={}".format(
+        url += "?unique_student_identifier={}".format(
             quote(self.students[0].email.encode("utf-8"))
         )
         print url
@@ -522,6 +522,19 @@ class TestInstructorAPILevelsDataDump(ModuleStoreTestCase, LoginEnrollmentTestCa
         res_json = json.loads(response.content)
         self.assertIn('progress_url', res_json)
 
+    def test_get_student_progress_url_from_uname(self):
+        """ Test that progress_url is in the successful response. """
+        url = reverse('get_student_progress_url', kwargs={'course_id': self.course.id})
+        url += "?unique_student_identifier={}".format(
+            quote(self.students[0].username.encode("utf-8"))
+        )
+        print url
+        response = self.client.get(url)
+        print response
+        self.assertEqual(response.status_code, 200)
+        res_json = json.loads(response.content)
+        self.assertIn('progress_url', res_json)
+
     def test_get_student_progress_url_noparams(self):
         """ Test that the endpoint 404's without the required query params. """
         url = reverse('get_student_progress_url', kwargs={'course_id': self.course.id})
@@ -579,7 +592,7 @@ class TestInstructorAPIRegradeTask(ModuleStoreTestCase, LoginEnrollmentTestCase)
         url = reverse('reset_student_attempts', kwargs={'course_id': self.course.id})
         response = self.client.get(url, {
             'problem_to_reset': self.problem_urlname,
-            'student_email': self.student.email,
+            'unique_student_identifier': self.student.email,
         })
         print response.content
         self.assertEqual(response.status_code, 200)
@@ -608,7 +621,7 @@ class TestInstructorAPIRegradeTask(ModuleStoreTestCase, LoginEnrollmentTestCase)
         url = reverse('reset_student_attempts', kwargs={'course_id': self.course.id})
         response = self.client.get(url, {
             'problem_to_reset': 'robot-not-a-real-module',
-            'student_email': self.student.email,
+            'unique_student_identifier': self.student.email,
         })
         print response.content
         self.assertEqual(response.status_code, 400)
@@ -618,7 +631,7 @@ class TestInstructorAPIRegradeTask(ModuleStoreTestCase, LoginEnrollmentTestCase)
         url = reverse('reset_student_attempts', kwargs={'course_id': self.course.id})
         response = self.client.get(url, {
             'problem_to_reset': self.problem_urlname,
-            'student_email': self.student.email,
+            'unique_student_identifier': self.student.email,
             'delete_module': True,
         })
         print response.content
@@ -634,11 +647,11 @@ class TestInstructorAPIRegradeTask(ModuleStoreTestCase, LoginEnrollmentTestCase)
         )
 
     def test_reset_student_attempts_nonsense(self):
-        """ Test failure with both student_email and all_students. """
+        """ Test failure with both unique_student_identifier and all_students. """
         url = reverse('reset_student_attempts', kwargs={'course_id': self.course.id})
         response = self.client.get(url, {
             'problem_to_reset': self.problem_urlname,
-            'student_email': self.student.email,
+            'unique_student_identifier': self.student.email,
             'all_students': True,
         })
         print response.content
@@ -650,7 +663,19 @@ class TestInstructorAPIRegradeTask(ModuleStoreTestCase, LoginEnrollmentTestCase)
         url = reverse('rescore_problem', kwargs={'course_id': self.course.id})
         response = self.client.get(url, {
             'problem_to_reset': self.problem_urlname,
-            'student_email': self.student.email,
+            'unique_student_identifier': self.student.email,
+        })
+        print response.content
+        self.assertEqual(response.status_code, 200)
+        self.assertTrue(act.called)
+
+    @patch.object(instructor_task.api, 'submit_rescore_problem_for_student')
+    def test_rescore_problem_single_from_uname(self, act):
+        """ Test rescoring of a single student. """
+        url = reverse('rescore_problem', kwargs={'course_id': self.course.id})
+        response = self.client.get(url, {
+            'problem_to_reset': self.problem_urlname,
+            'unique_student_identifier': self.student.username,
         })
         print response.content
         self.assertEqual(response.status_code, 200)
@@ -747,7 +772,7 @@ class TestInstructorAPITaskLists(ModuleStoreTestCase, LoginEnrollmentTestCase):
         url = reverse('list_instructor_tasks', kwargs={'course_id': self.course.id})
         response = self.client.get(url, {
             'problem_urlname': self.problem_urlname,
-            'student_email': self.student.email,
+            'unique_student_identifier': self.student.email,
         })
         print response.content
         self.assertEqual(response.status_code, 200)
diff --git a/lms/djangoapps/instructor/views/api.py b/lms/djangoapps/instructor/views/api.py
index 9e58ecea5f..e0b047604e 100644
--- a/lms/djangoapps/instructor/views/api.py
+++ b/lms/djangoapps/instructor/views/api.py
@@ -509,7 +509,10 @@ def reset_student_attempts(request, course_id):
     )
 
     problem_to_reset = strip_if_string(request.GET.get('problem_to_reset'))
-    student = get_student_from_identifier(request.GET.get('unique_student_identifier'))
+    student_identifier = request.GET.get('unique_student_identifier', None)
+    student = None
+    if student_identifier is not None:
+        student = get_student_from_identifier(student_identifier)
     all_students = request.GET.get('all_students', False) in ['true', 'True', True]
     delete_module = request.GET.get('delete_module', False) in ['true', 'True', True]
 
@@ -538,9 +541,11 @@ def reset_student_attempts(request, course_id):
             enrollment.reset_student_attempts(course_id, student, module_state_key, delete_module=delete_module)
         except StudentModule.DoesNotExist:
             return HttpResponseBadRequest("Module does not exist.")
+        response_payload['student'] = student_identifier
     elif all_students:
         instructor_task.api.submit_reset_problem_attempts_for_all_students(request, course_id, module_state_key)
         response_payload['task'] = 'created'
+        response_payload['student'] = 'All Students'
     else:
         return HttpResponseBadRequest()
 
@@ -565,9 +570,10 @@ def rescore_problem(request, course_id):
     all_students and unique_student_identifier cannot both be present.
     """
     problem_to_reset = strip_if_string(request.GET.get('problem_to_reset'))
-    student = request.GET.get('unique_student_identifier', None)
-    if student is not None:
-        student = get_student_from_identifier(student)
+    student_identifier = request.GET.get('unique_student_identifier', None)
+    student = None
+    if student_identifier is not None:
+        student = get_student_from_identifier(student_identifier)
 
     all_students = request.GET.get('all_students') in ['true', 'True', True]
 
@@ -585,7 +591,7 @@ def rescore_problem(request, course_id):
     response_payload['problem_to_reset'] = problem_to_reset
 
     if student:
-        response_payload['student'] = student
+        response_payload['student'] = student_identifier
         instructor_task.api.submit_rescore_problem_for_student(request, course_id, module_state_key, student)
         response_payload['task'] = 'created'
     elif all_students: