diff --git a/index.ipynb b/index.ipynb
index 79832fc..40030dd 100644
--- a/index.ipynb
+++ b/index.ipynb
@@ -60,11 +60,22 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 1,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "42"
+      ]
+     },
+     "execution_count": 1,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
-    "number = None\n",
+    "number = 42\n",
     "number"
    ]
   },
@@ -77,11 +88,22 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 2,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "'Change Things'"
+      ]
+     },
+     "execution_count": 2,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
-    "flatiron_mantra = None\n",
+    "flatiron_mantra = 'Change Things'\n",
     "flatiron_mantra"
    ]
   },
@@ -92,6 +114,15 @@
     "Add a new markdown cell below this one and type `### This is a new header`"
    ]
   },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "### This is a new header"
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {},
@@ -99,6 +130,27 @@
     "Now add a new code cell below this one and write whatever code you want to write."
    ]
   },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[1 2 3 4 5]\n",
+      "<class 'numpy.ndarray'>\n"
+     ]
+    }
+   ],
+   "source": [
+    "import numpy as np\n",
+    "arnold = np.array([1,2,3,4,5])\n",
+    "print(arnold)\n",
+    "print(type(arnold))"
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {},
@@ -131,7 +183,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.5"
+   "version": "3.8.10"
   }
  },
  "nbformat": 4,