%% 
%%  The LaTeX Graphics Companion, 2ed (first printing May 2007)
%% 
%%  Example 11-4-13 on page 767.
%% 
%%  Copyright (C) 2007 Michel Goossens, Frank Mittelbach, Denis Roegel, Sebastian Rahtz, Herbert Vo\ss 
%% 
%%  It may be distributed and/or modified under the conditions
%%  of the LaTeX Project Public License, either version 1.3
%%  of this license or (at your option) any later version.
%% 
%%  See http://www.latex-project.org/lppl.txt for details.
%% 

% Show page(s) 3,6

\documentclass{ttctbeamer}
% graphic converted to gray in book

\StartShownPreambleCommands
\documentclass{beamer}
\usetheme{Malmoe}
\useoutertheme{sidebar}
\usecolortheme{dove}
\StopShownPreambleCommands

\begin{document}
\begin{frame}
  \frametitle{The Pythagorean Theorem}
  \only<1,8>{OK, let's start \ldots}

  \[ \only<2->{a^2} \only<3->{ + }
     \only<4->{b^2} \only<5->{ = }
     \only<6->{c^2} \]

  \only<7>{Or in words:}\par
  \only<8>{The Pythagorean Theorem asserts that
    for a \textbf{right} triangle, the square
    of the hypotenuse is equal to the sum of
    the squares of the other two sides!}

\end{frame}
\end{document}