diff -r ca9c1cf929fa -r e5453add7df6 slides/slides04.tex
--- a/slides/slides04.tex	Tue Nov 26 01:22:36 2019 +0000
+++ b/slides/slides04.tex	Tue Dec 03 01:22:16 2019 +0000
@@ -148,7 +148,7 @@
     Email:  & christian.urban at kcl.ac.uk\\
     Office: & N\liningnums{7.07} (North Wing, Bush House)\bigskip\\
     Slides \& Code: & KEATS\\
-                    & \onslide<2>{\alert{A Crash-Course in Scala}}\bigskip\\
+                    & \onslide<2>{\alert{PDF: A Crash-Course in Scala}}\bigskip\\
     Office Hours: &  Thursdays 12:00 -- 14:00\\
     Additionally: & (for Scala) Tuesdays 10:45 -- 11:45\\ 
   \end{tabular}
@@ -174,7 +174,16 @@
 \end{frame}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\begin{frame}[c]
+\frametitle{Discussion Forum}
 
+\begin{center}  
+\includegraphics[scale=0.38]{/Users/cu/discussion.png}
+\end{center}
+
+\end{frame}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%     
 \begin{frame}[c]
@@ -191,7 +200,7 @@
 \end{itemize}\bigskip\bigskip  
 
 \footnotesize
-(interviews ongoing!)
+(plagiarism/collusion interviews ongoing!)
 
 \end{frame}
 
@@ -450,7 +459,7 @@
 \begin{frame}[c,fragile]
 \frametitle{Regular Expressions} 
   
-Suppose you have a regular expression 
+Suppose you have the regular expression 
 \only<1-3>{\alert{\texttt{(a*)b}}}%
 \only<4->{\alert{\texttt{(a*)*b}}} :\bigskip
 
@@ -551,6 +560,11 @@
 \begin{center}
   \includegraphics[angle=90,scale=0.35]{/Users/cu/vote.pdf}
 \end{center}
+ 
+ \only<2>{%
+\begin{textblock}{13}(10,10)
+\includegraphics[scale=0.2]{/Users/cu/goodvote.png}
+\end{textblock}}
 
 \end{frame}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%