Index: db/migrate/20100219213659_turn_out_of_into_float.rb
===================================================================
--- db/migrate/20100219213659_turn_out_of_into_float.rb	(revision 0)
+++ db/migrate/20100219213659_turn_out_of_into_float.rb	(revision 0)
@@ -0,0 +1,11 @@
+class TurnOutOfIntoFloat < ActiveRecord::Migration
+  def self.up
+    remove_column :grade_entry_items, :out_of
+    add_column :grade_entry_items, :out_of, :float
+  end
+
+  def self.down
+    remove_column :grade_entry_items, :out_of
+    add_column :grade_entry_items, :out_of, :string
+  end
+end