diff --git a/chapter6/Split_Temporary_Variable.rb b/chapter6/Split_Temporary_Variable.rb
new file mode 100644
index 0000000..b35d4db
--- /dev/null
+++ b/chapter6/Split_Temporary_Variable.rb
@@ -0,0 +1,22 @@
+class Haggis
+  def initialize(primary_force, secondary_force, mass, delay)
+    @primary_force = primary_force
+    @secondary_force = secondary_force
+    @mass = mass
+    @delay = delay
+  end
+
+  def distance_traveled(time)
+    acc = @primary_force / @mass
+    primary_time = [time, @delay].min
+    result = 0.5 * acc * primary_time * primary_time
+    secondary_time = time - @delay
+    if (secondary_time > 0)
+      primary_vel = acc * @delay
+      acc = (@primary_force + @secondary_force) / @mass
+      result += primary_vel * secondary_time + 5 * acc * secondary_time * secondary_time
+    end
+    result
+  end
+end
+
diff --git a/chapter6/TC_Split_Temporary_Variable.rb b/chapter6/TC_Split_Temporary_Variable.rb
new file mode 100644
index 0000000..3c3735b
--- /dev/null
+++ b/chapter6/TC_Split_Temporary_Variable.rb
@@ -0,0 +1,32 @@
+require 'rubygems'
+require 'test/unit'
+require 'must'
+require 'kconv'
+require 'Split_Temporary_Variable'
+
+$KCODE="UTF8"
+class TC_Split_Temporary_Variable < Test::Unit::TestCase
+
+  def assert(status,msg)
+    if(RUBY_PLATFORM.downcase =~ /mswin(?!ce)|mingw|cygwin|bccwin/)
+      msg=Kconv.tosjis(msg)
+    end
+    super(status,msg)
+  end
+  
+  def setup
+        @obj1 = Haggis.new(500,300,100,10)
+        @obj2 = Haggis.new(400,200,50,5)
+  end
+
+  must "check the method 'distance_traveled' part.1" do
+    expectation = 4750
+    assert_equal(expectation, @obj1.distance_traveled(20))
+  end
+  
+  must "check the method 'distance_traveled' part.2" do
+    expectation = 14200
+    assert_equal(expectation, @obj2.distance_traveled(20))
+  end
+  
+end