diff --git a/lecture/03_Variablen/03_Variablen.tex b/lecture/03_Variablen/03_Variablen.tex
index 38fb270..7163e19 100644
--- a/lecture/03_Variablen/03_Variablen.tex
+++ b/lecture/03_Variablen/03_Variablen.tex
@@ -1,4 +1,4 @@
-% !TeX document-id = {dc20ae76-71b7-4d65-b662-f71c46d32e15}
+\usepackage{blkarray}% !TeX document-id = {dc20ae76-71b7-4d65-b662-f71c46d32e15}
 % !TeX TXS-program:compile = txs:///pdflatex/[--shell-escape]
 \input{../global.tex}
 
@@ -97,6 +97,34 @@ \subsection{Zuweisung}
 % \maketitle
 %\subtitle{Konsoleneingabe}
 
+
+\section{Exkurs: String Templates}
+\begin{frame}
+    \slidehead
+
+    \begin{itemize}[<+->]
+        \item \textbf{Ziel}: Ausdrücke in einem \inlinekotlin{String} einfügen
+        \item Kann man so machen
+        \kotlinfile{listings/string_no_template.kts}
+        \item Aber so ist besser
+        \kotlinfile{listings/string_template.kts}
+    \end{itemize}
+\end{frame}
+
+\begin{frame}
+    \slidehead
+
+    \begin{itemize}[<+->]
+        \item \textbf{Problem}: Komplexere Ausdrücke gehen nicht
+        \kotlinfile{listings/string_template_complex_mistake.kts}
+        \item \textbf{Lösung}: Geschweifte klammern \inlinekotlin{\$\{ ... \}}
+        \kotlinfile{listings/string_template_complex.kts}
+    \end{itemize}
+    \begin{block}{Hinweis}
+        Ausdrücke mit \inlinekotlin{.} brauchen die Klammern
+    \end{block}\
+\end{frame}
+
 \section{Exkurs: Konsoleneingabe}
 \begin{frame}
     \slidehead
diff --git a/lecture/03_Variablen/listings/string_no_template.kts b/lecture/03_Variablen/listings/string_no_template.kts
new file mode 100644
index 0000000..03ab70a
--- /dev/null
+++ b/lecture/03_Variablen/listings/string_no_template.kts
@@ -0,0 +1,2 @@
+val x = 5
+val result = "The result is " + x + " euros"
diff --git a/lecture/03_Variablen/listings/string_template.kts b/lecture/03_Variablen/listings/string_template.kts
new file mode 100644
index 0000000..a1927e5
--- /dev/null
+++ b/lecture/03_Variablen/listings/string_template.kts
@@ -0,0 +1,2 @@
+val x = 5
+val result = "The result is $x euros"
diff --git a/lecture/03_Variablen/listings/string_template_complex.kts b/lecture/03_Variablen/listings/string_template_complex.kts
new file mode 100644
index 0000000..33012cb
--- /dev/null
+++ b/lecture/03_Variablen/listings/string_template_complex.kts
@@ -0,0 +1,2 @@
+val y = "Fritz"
+val result = "Your name has ${y.length} letters"
diff --git a/lecture/03_Variablen/listings/string_template_complex_mistake.kts b/lecture/03_Variablen/listings/string_template_complex_mistake.kts
new file mode 100644
index 0000000..7fe020e
--- /dev/null
+++ b/lecture/03_Variablen/listings/string_template_complex_mistake.kts
@@ -0,0 +1,2 @@
+val y = "Fritz"
+val result = "Your name has $y.length letters"