\documentclass[11pt]{amsart}

\begin{document}

\title{Sample 3}
\author{A.Lachowska and \LaTeX}
\date{17th June 2003}
\maketitle

\section{Title of the section.}

\subsection{And this is how you make a subsection.}


Your text here.
%your comment here. 

\subsection{Another subsection.}

\end{document}

11pt amsart might be a nice format for your final paper


