% 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}