diff --git a/exercises/exercise-basic/README.md b/exercises/exercise-basic/README.md
index c7d5417d2d35695148e167a38212ed84c4c2a4c7..7dab4bb7b3a48cd7f3113fe384337f27bdb4898c 100644
--- a/exercises/exercise-basic/README.md
+++ b/exercises/exercise-basic/README.md
@@ -88,9 +88,13 @@ make exercise_basic_2pni # builds new executable
 
 * The following set-up should be realized:
 
-  __Boundary conditions:__ Dirichlet conditions for the temperature with a varying temperature of $`\displaystyle T(y) = 283~\text{K} + 0.03~\frac{\text{K}}{\text{m}} \cdot \left( d_\text{aquifer} - y \right) `$, with the aquifer depth $`\displaystyle d_\text{aquifer}=2700~\text{m}`$.
+  __Boundary conditions:__ Dirichlet conditions at the left boundary. For the primary variable 'temperature' use a varying temperature of <br/>
+$`\displaystyle T(y) = 283~\text{K} + 0.03~\frac{\text{K}}{\text{m}} \cdot \left( d_\text{aquifer} - y \right) `$, <br/>
+with the aquifer depth 
+$`\displaystyle d_\text{aquifer}=2700~\text{m}`$.
+Assign Neumann no-flow for the energy balance to the rest of the boundaries.
 
-  __Initial conditions:__ The same temperature gradient as in the boundary conditions with an additional lens (with position: 20 < x < 30, 5 < y < 35), which has an initial temperature of 380 K.
+  __Initial conditions:__ The same temperature gradient as in the boundary conditions with an exception in the subdomain (20 < x < 30, 5 < y < 35), where you assign a constant initial temperature of 380 K.
 
 <img src="https://git.iws.uni-stuttgart.de/dumux-repositories/dumux-course/raw/master/exercises/extradoc/exercise1_nonisothermal.png" width="800">
 
diff --git a/exercises/exercise-basic/injection2pniproblem.hh b/exercises/exercise-basic/injection2pniproblem.hh
index f6cc0c82da167277c9989e0a471a4a8bc4ac1b8a..82967461b9d0109fbd623bff9c033f9825dcbf20 100644
--- a/exercises/exercise-basic/injection2pniproblem.hh
+++ b/exercises/exercise-basic/injection2pniproblem.hh
@@ -175,6 +175,14 @@ public:
         else
             bcTypes.setAllNeumann();
 
+         /*!
+          * TODO:dumux-course-task:
+          * dumux-course-task:
+          * set Dirichlet conditions for the energy equation on the left boundary
+          * and Neumann everywhere else
+          * think about: is there anything necessary to do here?
+          */
+
         return bcTypes;
     }
 
@@ -187,6 +195,13 @@ public:
     PrimaryVariables dirichletAtPos(const GlobalPosition &globalPos) const
     {
         return initialAtPos(globalPos);
+
+         /*!
+          * TODO:dumux-course-task:
+          * dumux-course-task:
+          * set Dirichlet conditions for the energy equation on the left boundary
+          * think about: is there anything necessary to do here?
+          */
     }
 
     /*!
@@ -212,8 +227,8 @@ public:
          /*!
           * TODO:dumux-course-task:
           * dumux-course-task:
-          * set Neumann noflow conditions for the energy equation everywhere
-          * hint: use Indices::energyEqIdx) for that
+          * set Neumann noflow conditions for the energy equation everywhere else except the left boundary
+          * hint: use Indices::energyEqIdx) for that (if required)
           */
         }
 
diff --git a/slides/dumux-course-intro.pdf b/slides/dumux-course-intro.pdf
index 4cc71d83fe3ab7a03937a08a071973ded6bf1bb8..3c0b7c86ec97998884659a4e5b60f7918aa16742 100644
Binary files a/slides/dumux-course-intro.pdf and b/slides/dumux-course-intro.pdf differ