diff --git a/recursion-dynamic/fibonacci.ipynb b/recursion-dynamic/fibonacci.ipynb
index 17963e7..0fda31c 100644
--- a/recursion-dynamic/fibonacci.ipynb
+++ b/recursion-dynamic/fibonacci.ipynb
@@ -55,6 +55,17 @@
     "## Code"
    ]
   },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "collapsed": true
+   },
+   "outputs": [],
+   "source": [
+    "num_items = 10"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,
@@ -67,9 +78,9 @@
     "    if n == 0 or n == 1:\n",
     "        return n\n",
     "    else:\n",
-    "        return fib(n-1) + fib(n-2)\n",
+    "        return fib_recursive(n-1) + fib_recursive(n-2)\n",
     "\n",
-    "for i in xrange(0, 10):\n",
+    "for i in xrange(0, num_items):\n",
     "    print(fib_recursive(i))"
    ]
   },
@@ -81,8 +92,7 @@
    },
    "outputs": [],
    "source": [
-    "n = 7\n",
-    "cache = [None] * (n + 1)\n",
+    "cache = [None] * (num_items + 1)\n",
     "\n",
     "def fib_dynamic(n):\n",
     "    if n == 0 or n == 1:\n",
@@ -92,7 +102,7 @@
     "    cache[n] = fib_dynamic(n-1) + fib_dynamic(n-2)\n",
     "    return cache[n]\n",
     "\n",
-    "for i in xrange(0, 10):\n",
+    "for i in xrange(0, num_items):\n",
     "    print(fib_dynamic(i))"
    ]
   },
@@ -100,7 +110,7 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
-    "collapsed": true
+    "collapsed": false
    },
    "outputs": [],
    "source": [
@@ -116,7 +126,7 @@
     "            n_minus_2, n_minus_1 = n_minus_1, total\n",
     "        return total\n",
     "\n",
-    "for i in xrange(0, 10):\n",
+    "for i in xrange(0, num_items):\n",
     "    print(fib_iterative(i))"
    ]
   }