diff --git a/admin/app/admin/teachers.rb b/admin/app/admin/teachers.rb
index 854fcaeae..7dc2529a0 100644
--- a/admin/app/admin/teachers.rb
+++ b/admin/app/admin/teachers.rb
@@ -81,6 +81,12 @@ ActiveAdmin.register JamRuby::Teacher, :as => 'Teachers' do
           span do
             'YES'
           end
+          span do
+            br
+          end
+          span do
+            link_to("mark not checked", mark_not_session_ready_admin_teacher_path(teacher.id), {confirm: "Mark not ready for session??"})
+          end
         else
           span do
             'NO'
@@ -211,6 +217,12 @@ ActiveAdmin.register JamRuby::Teacher, :as => 'Teachers' do
             span do
               'YES'
             end
+            span do
+              br
+            end
+            span do
+              link_to("mark not checked", mark_not_session_ready_admin_teacher_path(teacher.id), {confirm: "Mark not ready for session??"})
+            end
           else
             span do
               'NO'
@@ -276,6 +288,11 @@ ActiveAdmin.register JamRuby::Teacher, :as => 'Teachers' do
     redirect_to :back
   end
 
+  member_action :mark_not_session_ready, :method => :get do
+    resource.mark_not_session_ready
+    redirect_to :back
+  end
+
   member_action :mark_top, :method => :get do
     resource.mark_top_rated
     redirect_to :back
diff --git a/ruby/lib/jam_ruby/models/teacher.rb b/ruby/lib/jam_ruby/models/teacher.rb
index 420311e56..fa87417e2 100644
--- a/ruby/lib/jam_ruby/models/teacher.rb
+++ b/ruby/lib/jam_ruby/models/teacher.rb
@@ -359,6 +359,11 @@ module JamRuby
       self.save!
     end
 
+    def mark_not_session_ready
+      self.ready_for_session_at = nil
+      self.save!
+    end
+
     def mark_top_rated
       self.top_rated = true
       self.save!