\documentclass[12pt]{article}
\usepackage[Mickael]{ammaths}

\begin{document}

\module{Famous ciphers 2 -- The dancing men}{03}{11}{1 period}
\en\nocouleur

\prereq{Concepts of cryptography. Caesar cipher.}

\object{\begin{itemize}
        \item Discover and break the dancing men cipher
	\end{itemize}}

\mater{\begin{itemize}
	\item Story and cipher
	\item Cipher
	\item Slideshow
	\end{itemize}}

\modpart{Break the code}{55 mins}

Students are given some hints about the story and the original ciphers from Arthur Conan Doyle's short story. 
They have the whole period to break the cipher.


\modpart{The short story}{Homework}

Students are given the complete short story to read home, focusing on the part where Sherlock Holmes explains how he
managed to break the code.





\pagebreak

\moddocdis{Famous ciphers 2 -- The dancing men}{03}{11}{Ciphers}

\sectionblack{Synopsis}


\begin{minipage}{9cm}
\setlength{\parindent}{20pt}
The story takes place about a year after Mr. Hilton Cubitt married Elsi, a young American lady. She is American, and
before the wedding, she asked her husband-to-be to promise her never to ask about her past, as she had had some ``very
disagreeable associations'' in her life.

All is well until Elsie received a letter from the USA, that obviously upsets her, as she threws the letter in the
fire. A few days letter, pictures of dancing men appear repeatedly, sometimes on pieces of paper, sometimes chalked on
a wall, or a door or even a windowsill.

Cubitt calls the famous London detective, Sherlock Holmes. Holmes tells Cubitt that he wants to see every occurrence of
the dancing men. He quickly realizes that it is a substitution cipher and cracks it.
\end{minipage}
\begin{minipage}{7cm}
\begin{center}
\includegraphics[width=6cm]{images/holmespaget.eps}\\
{\footnotesize Sherlock examining one cipher.\\
Illustration by Sidney Paget, 1903}
\end{center}
\end{minipage}




\sectionblack{The ciphers}

\begin{multicols}{2}
\begin{center}
{\sf Cipher 1}\\
\includegraphics[scale=0.65]{images/dancingmen0.eps}

{\sf Cipher 2}\\
\includegraphics[scale=0.5]{images/dancingmen1.eps}

{\sf Cipher 3}\\
\includegraphics[scale=0.5]{images/dancingmen2.eps}

{\sf Cipher 4}\\
\includegraphics[scale=0.5]{images/dancingmen3.eps}
\end{center}
\end{multicols}

\begin{center}
{\sf Cipher 5}\\
\includegraphics[scale=0.65]{images/dancingmen4.eps}
\end{center}

\end{document}
