diff --git a/notebooks/walker/Step_1_classes/Step_1_classes_exercise.ipynb b/notebooks/walker/Step_1_classes/Step_1_classes_exercise.ipynb
index 2ce015b..3304d42 100644
--- a/notebooks/walker/Step_1_classes/Step_1_classes_exercise.ipynb
+++ b/notebooks/walker/Step_1_classes/Step_1_classes_exercise.ipynb
@@ -96,7 +96,7 @@
     }
    },
    "source": [
-    "# 2. Rewrite the code to look like it would in your wildest dreams!\n",
+    "# 2. How would interact with the Walker in your wildest dreams!\n",
     "\n",
     "How could you restructure the interface of the `walker` library so that the functionality stays the same, but the code is less smelly?\n",
     "\n",
@@ -133,7 +133,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 4,
+   "execution_count": null,
    "metadata": {
     "pycharm": {
      "name": "#%%\n"
@@ -141,7 +141,7 @@
    },
    "outputs": [],
    "source": [
-    "# Write the code that uses your new `walker` interface here!\n",
+    "# Write the (pseudo)code that uses your new `walker` interface here!\n",
     "# walker = Walker(sigma_i=3, sigma_j=4, ...)\n",
     "# ..."
    ]
diff --git a/notebooks/walker/Step_3_break_out_the_context_map_initialization/Step_3_break_out_the_context_map_initialization.ipynb b/notebooks/walker/Step_3_break_out_the_context_map_initialization/Step_3_break_out_the_context_map_initialization.ipynb
index 83d413c..04a4339 100644
--- a/notebooks/walker/Step_3_break_out_the_context_map_initialization/Step_3_break_out_the_context_map_initialization.ipynb
+++ b/notebooks/walker/Step_3_break_out_the_context_map_initialization/Step_3_break_out_the_context_map_initialization.ipynb
@@ -81,7 +81,7 @@
     }
    },
    "source": [
-    "# 2. Modify the above code to reflect the idea of a separate context_map module\n",
+    "# 2. Propose modifications to the code that calls the walker (above) to reflect the idea of a separate context_map module\n",
     "\n",
     "1. how would the import statement change as a result of needing a separate context_map module?\n",
     "2. what input arguments do the context_map functions need to take?\n",
@@ -121,7 +121,9 @@
     "4. Try to run all the types:\n",
     "    - Run one simulation with a flat context map\n",
     "    - Run one simulation with a hill context map\n",
-    "    - Run one simulation with a labyrinth context map"
+    "    - Run one simulation with a labyrinth context map\n",
+    "\n",
+    "When you have a working implementation: PR! You can link the issue in the commit message (by writing \"issue #3\")."
    ]
   },
   {
diff --git a/scientific_programming_patterns.pdf b/scientific_programming_patterns.pdf
index 3195aa6..163bb83 100644
Binary files a/scientific_programming_patterns.pdf and b/scientific_programming_patterns.pdf differ
diff --git a/scientific_programming_patterns.pptx b/scientific_programming_patterns.pptx
index b7b6845..797e0c3 100644
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