diff --git a/week06/average-squares-example/average_squares/squares.py b/week06/average-squares-example/average_squares/squares.py
index d7e454e..8e7fa07 100644
--- a/week06/average-squares-example/average_squares/squares.py
+++ b/week06/average-squares-example/average_squares/squares.py
@@ -29,7 +29,7 @@ def average_of_squares(list_of_numbers, list_of_weights=None):
         for number, weight
         in zip(list_of_numbers, effective_weights)
     ]
-    return sum(squares)
+    return sum(squares)/len(list_of_numbers)
 
 
 def convert_numbers(list_of_strings):
@@ -38,7 +38,7 @@ def convert_numbers(list_of_strings):
     Example:
     --------
     >>> convert_numbers(["4", " 8 ", "15 16", " 23    42 "])
-    [4, 8, 15, 16]
+    [4.0, 8.0, 15.0, 16.0, 23.0, 42.0]
 
     """
     all_numbers = []
diff --git a/week06/average-squares-example/docs/Makefile b/week06/average-squares-example/docs/Makefile
new file mode 100644
index 0000000..d0c3cbf
--- /dev/null
+++ b/week06/average-squares-example/docs/Makefile
@@ -0,0 +1,20 @@
+# Minimal makefile for Sphinx documentation
+#
+
+# You can set these variables from the command line, and also
+# from the environment for the first two.
+SPHINXOPTS    ?=
+SPHINXBUILD   ?= sphinx-build
+SOURCEDIR     = source
+BUILDDIR      = build
+
+# Put it first so that "make" without argument is like "make help".
+help:
+	@$(SPHINXBUILD) -M help "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
+
+.PHONY: help Makefile
+
+# Catch-all target: route all unknown targets to Sphinx using the new
+# "make mode" option.  $(O) is meant as a shortcut for $(SPHINXOPTS).
+%: Makefile
+	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
diff --git a/week06/average-squares-example/docs/content/average-squares-docs.rst b/week06/average-squares-example/docs/content/average-squares-docs.rst
new file mode 100644
index 0000000..0834017
--- /dev/null
+++ b/week06/average-squares-example/docs/content/average-squares-docs.rst
@@ -0,0 +1,5 @@
+Average Squares Documentation
+=============================
+
+.. automodule:: squares
+   :members:
\ No newline at end of file
diff --git a/week06/average-squares-example/docs/source/conf.py b/week06/average-squares-example/docs/source/conf.py
new file mode 100644
index 0000000..1d38947
--- /dev/null
+++ b/week06/average-squares-example/docs/source/conf.py
@@ -0,0 +1,55 @@
+# Configuration file for the Sphinx documentation builder.
+#
+# This file only contains a selection of the most common options. For a full
+# list see the documentation:
+# https://www.sphinx-doc.org/en/master/usage/configuration.html
+
+# -- Path setup --------------------------------------------------------------
+
+# If extensions (or modules to document with autodoc) are in another directory,
+# add these directories to sys.path here. If the directory is relative to the
+# documentation root, use os.path.abspath to make it absolute, like shown here.
+#
+import os
+import sys
+sys.path.insert(0, os.path.abspath('..'))
+
+
+# -- Project information -----------------------------------------------------
+
+project = 'squares'
+copyright = '2020, Danqing'
+author = 'Danqing'
+
+# The full version, including alpha/beta/rc tags
+release = '0.1'
+
+
+# -- General configuration ---------------------------------------------------
+
+# Add any Sphinx extension module names here, as strings. They can be
+# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
+# ones.
+extensions = ['sphinx.ext.autodoc'
+]
+
+# Add any paths that contain templates here, relative to this directory.
+templates_path = ['_templates']
+
+# List of patterns, relative to source directory, that match files and
+# directories to ignore when looking for source files.
+# This pattern also affects html_static_path and html_extra_path.
+exclude_patterns = []
+
+
+# -- Options for HTML output -------------------------------------------------
+
+# The theme to use for HTML and HTML Help pages.  See the documentation for
+# a list of builtin themes.
+#
+html_theme = 'alabaster'
+
+# Add any paths that contain custom static files (such as style sheets) here,
+# relative to this directory. They are copied after the builtin static files,
+# so a file named "default.css" will overwrite the builtin "default.css".
+html_static_path = ['_static']
\ No newline at end of file
diff --git a/week06/average-squares-example/docs/source/index.rst b/week06/average-squares-example/docs/source/index.rst
new file mode 100644
index 0000000..61f7d41
--- /dev/null
+++ b/week06/average-squares-example/docs/source/index.rst
@@ -0,0 +1,24 @@
+.. squares documentation master file, created by
+   sphinx-quickstart on Tue Nov 17 02:39:10 2020.
+   You can adapt this file completely to your liking, but it should at least
+   contain the root `toctree` directive.
+
+Welcome to squares's documentation!
+===================================
+
+This project is designed to calculate the weighted average of squares.
+
+.. toctree::
+   :maxdepth: 2
+   :caption: Contents:
+
+   Average Squares Documentation <average-squares-docs.rst>
+
+
+Indices and tables
+==================
+
+* :ref:`genindex`
+* :ref:`modindex`
+* :ref:`search`
+