diff --git a/activerecord/lib/active_record.rb b/activerecord/lib/active_record.rb
index d5b6d40514e3a..58673ab7bd385 100644
--- a/activerecord/lib/active_record.rb
+++ b/activerecord/lib/active_record.rb
@@ -53,14 +53,13 @@ module ActiveRecord
     autoload_under 'relation' do
       autoload :QueryMethods
       autoload :FinderMethods
-      autoload :CalculationMethods
+      autoload :Calculations
       autoload :PredicateBuilder
       autoload :SpawnMethods
     end
 
     autoload :Base
     autoload :Batches
-    autoload :Calculations
     autoload :Callbacks
     autoload :DynamicFinderMatch
     autoload :DynamicScopeMatch
diff --git a/activerecord/lib/active_record/base.rb b/activerecord/lib/active_record/base.rb
index 06244d1132ad9..e10df1abd3b1c 100755
--- a/activerecord/lib/active_record/base.rb
+++ b/activerecord/lib/active_record/base.rb
@@ -654,6 +654,7 @@ def find(*args)
       end
 
       delegate :select, :group, :order, :limit, :joins, :where, :preload, :eager_load, :includes, :from, :lock, :readonly, :having, :to => :scoped
+      delegate :count, :average, :minimum, :maximum, :sum, :calculate, :to => :scoped
 
       # A convenience wrapper for <tt>find(:first, *args)</tt>. You can pass in all the
       # same arguments to this method as you can to <tt>find(:first)</tt>.
@@ -2742,7 +2743,7 @@ def quoted_comma_pair_list(quoter, hash)
     # #save_with_autosave_associations to be wrapped inside a transaction.
     include AutosaveAssociation, NestedAttributes
 
-    include Aggregations, Transactions, Reflection, Batches, Calculations, Serialization
+    include Aggregations, Transactions, Reflection, Batches, Serialization
 
   end
 end
diff --git a/activerecord/lib/active_record/calculations.rb b/activerecord/lib/active_record/calculations.rb
deleted file mode 100644
index ea63617c52f5f..0000000000000
--- a/activerecord/lib/active_record/calculations.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-module ActiveRecord
-  module Calculations #:nodoc:
-    extend ActiveSupport::Concern
-
-    module ClassMethods
-      delegate :count, :average, :minimum, :maximum, :sum, :calculate, :to => :scoped
-    end
-  end
-end
diff --git a/activerecord/lib/active_record/relation.rb b/activerecord/lib/active_record/relation.rb
index 19f91f4278c0f..6ac7137976df2 100644
--- a/activerecord/lib/active_record/relation.rb
+++ b/activerecord/lib/active_record/relation.rb
@@ -5,7 +5,7 @@ class Relation
     MULTI_VALUE_METHODS = [:select, :group, :order, :joins, :where, :having]
     SINGLE_VALUE_METHODS = [:limit, :offset, :lock, :readonly, :create_with, :from]
 
-    include FinderMethods, CalculationMethods, SpawnMethods, QueryMethods
+    include FinderMethods, Calculations, SpawnMethods, QueryMethods
 
     delegate :length, :collect, :map, :each, :all?, :include?, :to => :to_a
 
diff --git a/activerecord/lib/active_record/relation/calculation_methods.rb b/activerecord/lib/active_record/relation/calculations.rb
similarity index 99%
rename from activerecord/lib/active_record/relation/calculation_methods.rb
rename to activerecord/lib/active_record/relation/calculations.rb
index 155e90333c9dc..5645e7f031320 100644
--- a/activerecord/lib/active_record/relation/calculation_methods.rb
+++ b/activerecord/lib/active_record/relation/calculations.rb
@@ -1,5 +1,5 @@
 module ActiveRecord
-  module CalculationMethods
+  module Calculations
     # Count operates using three different approaches.
     #
     # * Count all: By not passing any parameters to count, it will return a count of all the rows for the model.