diff --git a/w12_analysis/t01_big_picture.pdf b/w12_analysis/t01_big_picture.pdf
index 3f330d7..5750a9d 100644
Binary files a/w12_analysis/t01_big_picture.pdf and b/w12_analysis/t01_big_picture.pdf differ
diff --git a/w12_analysis/t01_big_picture.tex b/w12_analysis/t01_big_picture.tex
index 9a30093..78d311b 100644
--- a/w12_analysis/t01_big_picture.tex
+++ b/w12_analysis/t01_big_picture.tex
@@ -41,7 +41,7 @@
 	\item AutoML is even worse?
 	\begin{itemize}
 		\item AutoML  is a black-box that automates the design  of another blackbox (ML)
-		\item Also ML-developers have an basic understanding of the design of their ML pipelines
+		\item Also ML-developers have a basic understanding of the design of their ML pipelines
 	\end{itemize}
 
 	\bigskip
@@ -125,7 +125,7 @@
 	\item \alert{Notes}: 
 	\begin{itemize}
 		\item Plot on log-scale to see details in the beginning
-		\item  If you done several runs, plot distribution\\ (e.g., median and $25/75\%$-quartiles)
+		\item  If you have done several runs, plot distribution\\ (e.g., median and $25/75\%$-quartiles)
 	\end{itemize}
 \end{itemize}
 	
diff --git a/w12_analysis/t03_local_importance.pdf b/w12_analysis/t03_local_importance.pdf
index acd08a2..180123b 100644
Binary files a/w12_analysis/t03_local_importance.pdf and b/w12_analysis/t03_local_importance.pdf differ
diff --git a/w12_analysis/t03_local_importance.tex b/w12_analysis/t03_local_importance.tex
index ca5ceec..b7c7bde 100644
--- a/w12_analysis/t03_local_importance.tex
+++ b/w12_analysis/t03_local_importance.tex
@@ -108,7 +108,7 @@
 	\end{enumerate}
     \pause
 	\item \alert{Key Idea}: Going from the default to the automatically optimized configuration,\\
-	 which choices where important?
+	 which choices were important?
 \end{itemize}
 
 \begin{eqnarray}