% babybeamerg presentation
\documentclass{beamer}
\begin{document}
\begin{frame}
%\begin{overprint}
\includegraphics<1>{basem3-1}
\includegraphics<2>{basem3-2}
\includegraphics<3>{basem3-3}
\includegraphics<4>{basem3-4}
%\end{overprint}
\end{frame}
\end{document}
