diff --git a/lms/djangoapps/open_ended_grading/peer_grading_service.py b/lms/djangoapps/open_ended_grading/peer_grading_service.py
index cd4a94f26d..70d0721b3b 100644
--- a/lms/djangoapps/open_ended_grading/peer_grading_service.py
+++ b/lms/djangoapps/open_ended_grading/peer_grading_service.py
@@ -65,6 +65,7 @@ class PeerGradingService(GradingService):
         return response
 
 
+_service = None
 def peer_grading_service():
     """
     Return a peer grading service instance--if settings.MOCK_PEER_GRADING is True,
diff --git a/lms/static/coffee/src/peer_grading/peer_grading_problem.coffee b/lms/static/coffee/src/peer_grading/peer_grading_problem.coffee
index 5b7aef18c7..7c0921cc98 100644
--- a/lms/static/coffee/src/peer_grading/peer_grading_problem.coffee
+++ b/lms/static/coffee/src/peer_grading/peer_grading_problem.coffee
@@ -18,14 +18,27 @@ class PeerGradingProblemBackend
         success: true 
         calibrated: false
     else if cmd == 'show_calibration_essay'
+      #response = 
+      #  success: false
+      #  error: "There was an error"
       response = 
         success: true
         submission_id: 1
         submission_key: 'abcd'
-        student_response: 'I am a fake response'
+        student_response: 'I am a fake calibration response'
         prompt: 'Answer this question'
         rubric: 'This is a rubric.'
         max_score: 4
+    else if cmd == 'get_next_submission'
+      response = 
+        success: true
+        submission_id: 1
+        submission_key: 'abcd'
+        student_response: 'I am a fake student response'
+        prompt: 'Answer this question'
+        rubric: 'This is a rubric.'
+        max_score: 4
+
 
         
     return response
@@ -48,35 +61,51 @@ class PeerGradingProblem
     @submission_container = $('.submission-container')
     @prompt_container = $('.prompt-container')
     @rubric_container = $('.rubric-container')
+    @instructions_panel = $('.instructions-panel')
+    @content_panel = $('.content-panel')
 
     @error_container = $('.error-container')
 
+    @submission_key_input = $("input[name='submission-key']")
+    @essay_id_input = $("input[name='essay-id']")
+
+    @score_selection_container = $('.score-selection-container')
+    @score = null
+
+    @submit_button = $('.submit-button')
+    @action_button = $('.action-button')
+
+    @action_button.click -> document.location.reload(true)
+
     @is_calibrated_check()
 
 
+  ##########
+  #
+  #  Ajax calls to the backend
+  #
+  ##########
   is_calibrated_check: () =>
-    @backend.post('is_student_calibrated', {}, @calibration_check_callback)
+    @backend.post('is_student_calibrated', {location: @location}, @calibration_check_callback)
 
-
-  fetch_calibration_essay: ()=>
+  fetch_calibration_essay: () =>
     @backend.post('show_calibration_essay', {location: @location}, @render_calibration)
 
-  render_calibration: (response) =>
-    if response.success
-      #TODO: fill this in
+  fetch_submission_essay: () =>
+    @backend.post('get_next_submission', {location: @location}, @render_submission)
 
-      @submission_container.html("<h3>Calibration Essay</h3>")
-      @submission_container.append(response.student_response)
-      @prompt_container.html(response.prompt)
-      @rubric_container.html(response.rubric)
+  submit_calibration_essay: ()->
+    #TODO: onclick of the submit button. submits the calibration essay grade
 
-    else
-      @error_container.show()
-      @error_container.html(response.error)
-
-  render_submission: (response) ->
-    #TODO: fill this in
+  submit_grade: () ->
+    #TODO: onclick of the submit button. submits the grade
+    
 
+  ##########
+  #
+  #  Callbacks for various events
+  #
+  ##########
   calibration_check_callback: (response) =>
     if response.success
       # check whether or not we're still calibrating
@@ -86,6 +115,89 @@ class PeerGradingProblem
        else
          @fetch_calibration_essay()
          @calibration = true
+    else if response.error
+      @render_error(response.error)
+    else
+      @render_error("Error contacting the grading service")
+
+
+  submission_callback: (response) =>
+    if response.success
+      @is_calibrated_check()
+    else
+      if response.error
+        @render_error(response.error)
+      else
+        @render_error("Error occurred while submitting grade")
+
+  graded_callback: (event) =>
+    @score = event.target.value
+    @show_submit_button()
+
+  
+      
+  ##########
+  #
+  #  Rendering methods and helpers
+  #
+  ##########
+  render_calibration: (response) =>
+    if response.success
+
+      # load in all the data
+      @submission_container.html("<h3>Calibration Essay</h3>")
+      @render_submission_data(response)
+
+      # TODO: indicate that we're in calibration mode 
+
+    else
+      if response.error
+        @render_error(response.error)
+      else
+        @render_error("An error occurred while contacting the grading server")
+
+  render_submission_data: (response) =>
+    @content_panel.show()
+    @submission_container.append(response.student_response)
+    @prompt_container.html(response.prompt)
+    @rubric_container.html(response.rubric)
+    @submission_key_input.val(response.submission_key)
+    @essay_id_input.val(response.submission_id)
+    @setup_score_selection(response.max_score)
+    @submit_button.hide()
+    @action_button.hide()
+
+
+  render_submission: (response) =>
+    #TODO: fill this in
+    @submit_button.hide()
+    @render_submission_data(response)
+    
+  render_error: (error_message) =>
+      @error_container.show()
+      @error_container.html(error_message)
+      @content_panel.hide()
+
+  show_submit_button: () =>
+    @submit_button.show()
+
+  setup_score_selection: (max_score) =>
+    # first, get rid of all the old inputs, if any.
+    @score_selection_container.html('Choose score: ')
+
+    # Now create new labels and inputs for each possible score.
+    for score in [0..max_score]
+      id = 'score-' + score
+      label = """<label for="#{id}">#{score}</label>"""
+      
+      input = """
+              <input type="radio" name="score-selection" id="#{id}" value="#{score}"/>
+              """       # "  fix broken parsing in emacs
+      @score_selection_container.append(input + label)
+
+    # And now hook up an event handler again
+    $("input[name='score-selection']").change @graded_callback
+
 
 
 
diff --git a/lms/templates/peer_grading/peer_grading_problem.html b/lms/templates/peer_grading/peer_grading_problem.html
index 116da94ece..dd577c1295 100644
--- a/lms/templates/peer_grading/peer_grading_problem.html
+++ b/lms/templates/peer_grading/peer_grading_problem.html
@@ -21,6 +21,7 @@
         <div class="error-container"></div>
         <div class="message-container"></div>
 
+        <section class="content-panel">
         <div class="instructions-panel">
             <div class="calibration-panel">
                 <h3>Calibration</h3>
@@ -68,7 +69,10 @@
             <input type="button" value="Submit" class="submit-button" name="show"/>
         </div>
 
-        </div>
+    </div>
 
+    </section>
+    </section>
+    <input type="button" value="Reload page" class="action-button" name="reload" />
     </div>
 </section>