\begin{genericVisualization}[100prc][600]{applet}
...
\text{Solve the following problems and then click on Answer}
\text{a) Calculate something}
\text{b) Calculate something else}
\text{c) Calculate something else again}
\begin{tabs}{0}% tabs environment, the second argument defines which tab should be displayed on default, 0 means all tabs are hidden
\tab{Answer}
\text{\textbf{a)result for a}
\text{\textbf{b)result for b}
\text{\textbf{c)result for c}
\tab{Solution for a}
\begin{incremental}{1} % incremental environment, step 1 is displayed on default
\step %creates a step
\text{line 1 in step1}
\text{line 2 in step1}
% more lines ...
\step % begin step 2
\text{line 1 in step2}
% more lines ...
\end{incremental}
\tab{Solution for b}
...
\tab{Solution for c}
...
\end{tabs}
...
\end{genericVisualization}