\documentclass{beamer} 
\author{Lim Lian Tze}
\title{A Sample Presentation} 
\subtitle{Built with Beamer} 
\institute{\LaTeX\ Training Series} 
\date{2012}

\begin{document} 
\begin{frame} 
\maketitle 
\end{frame}

\begin{frame}
\frametitle{Agenda}
\tableofcontents
\end{frame}

\section{Introduction}

\begin{frame}
\frametitle{A Frame} 
\framesubtitle{Bullet points} 
\begin{itemize}
\item First thing
  \begin{itemize} 
  \item small point 
  \end{itemize}
\end{itemize} 
\end{frame}

\subsection{Blocks}

\begin{frame} 
\frametitle{Blocks} 
\begin{definition}[Greetings] 
Hello World
\end{definition}

\begin{theorem}[Fermat's Last Theorem] 
$a^n + b^n = c^n, n \leq 2$ 
\end{theorem}

\begin{alertblock}{Uh-oh.}
By the pricking of my thumbs. 
\end{alertblock}

\pause

\begin{exampleblock}{Uh-oh.} 
Something evil this way comes. 
\end{exampleblock}
\end{frame}

\begin{frame}
\begin{columns}
\begin{column}{.49\textwidth} 
...contents...
\end{column} 
\begin{column}{.49\textwidth} 
...contents...
\end{columns} 
\end{columns}
\end{frame}

\begin{frame}[fragile]
This slide contains some \verb|@debug_param| verbatim text.
\end{frame}

\end{document}

