diff --git a/s24/Louis_Lecture_Notes/26_Files_and_Directories/Lec26_Files_and_Directories_Solution_Oliphant.ipynb b/s24/Louis_Lecture_Notes/26_Files_and_Directories/Lec26_Files_and_Directories_Solution_Oliphant.ipynb
index 366eddaa1bb604b79ab1a82cfdc3ed437959b851..efcee2a9b7facfe916744423eef331e2ce36d3cd 100644
--- a/s24/Louis_Lecture_Notes/26_Files_and_Directories/Lec26_Files_and_Directories_Solution_Oliphant.ipynb
+++ b/s24/Louis_Lecture_Notes/26_Files_and_Directories/Lec26_Files_and_Directories_Solution_Oliphant.ipynb
@@ -8,7 +8,8 @@
    "source": [
     "# Warmup 0a: Run these!\n",
     "import os\n",
-    "from collections import namedtuple"
+    "from collections import namedtuple\n",
+    "import json"
    ]
   },
   {
@@ -17,9 +18,35 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "# Warmup 0b:\n",
-    "# Give an example of a mutable object... list\n",
-    "# Give an example of an immutable object... tuple"
+    "# Warmup 0b: Run these to create functions for reading and writing JSON files.\n",
+    "# Deserialize\n",
+    "def read_json(path):\n",
+    "    with open(path, encoding = \"utf-8\") as f: # f is a varaible \n",
+    "        return json.load(f)                 # f represents data in the JSON file (dict, list, etc)\n",
+    "    \n",
+    "# Serialize\n",
+    "def write_json(path, data):\n",
+    "    with open(path, 'w', encoding = \"utf-8\") as f:\n",
+    "        json.dump(data, f, indent = 2)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# Warmup 0c:\n",
+    "scores = {\n",
+    "    'john': [83,92,74],\n",
+    "    'sally': [88,97,81]\n",
+    "}\n",
+    "write_json('scores.json',scores)\n",
+    "\n",
+    "# TODO: What is the difference between the way the JSON file stores the scores data\n",
+    "# and the way it is written above in the scores variable?\n",
+    "\n",
+    "# ANSWER: Strings in a JSON file must be stored with double quotes not single quotes"
    ]
   },
   {
diff --git a/s24/Louis_Lecture_Notes/26_Files_and_Directories/Lec26_Files_and_Directories_Template_Oliphant.ipynb b/s24/Louis_Lecture_Notes/26_Files_and_Directories/Lec26_Files_and_Directories_Template_Oliphant.ipynb
index cdf7f650087f27fcd6c797efc6cc8087759e3aee..572f86811d2aaa40177b1829c75463179f9b4257 100644
--- a/s24/Louis_Lecture_Notes/26_Files_and_Directories/Lec26_Files_and_Directories_Template_Oliphant.ipynb
+++ b/s24/Louis_Lecture_Notes/26_Files_and_Directories/Lec26_Files_and_Directories_Template_Oliphant.ipynb
@@ -2,24 +2,49 @@
  "cells": [
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 1,
    "metadata": {},
    "outputs": [],
    "source": [
     "# Warmup 0a: Run these!\n",
     "import os\n",
-    "from collections import namedtuple"
+    "from collections import namedtuple\n",
+    "import json"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 2,
    "metadata": {},
    "outputs": [],
    "source": [
-    "# Warmup 0b:\n",
-    "# Give an example of a mutable object...\n",
-    "# Give an example of an immutable object..."
+    "# Warmup 0b: Run these to create functions for reading and writing JSON files.\n",
+    "# Deserialize\n",
+    "def read_json(path):\n",
+    "    with open(path, encoding = \"utf-8\") as f: # f is a varaible \n",
+    "        return json.load(f)                 # f represents data in the JSON file (dict, list, etc)\n",
+    "    \n",
+    "# Serialize\n",
+    "def write_json(path, data):\n",
+    "    with open(path, 'w', encoding = \"utf-8\") as f:\n",
+    "        json.dump(data, f, indent = 2)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# Warmup 0c:\n",
+    "scores = {\n",
+    "    'john': [83,92,74],\n",
+    "    'sally': [88,97,81]\n",
+    "}\n",
+    "write_json('scores.json',scores)\n",
+    "\n",
+    "# TODO: What is the difference between the way the JSON file stores the scores data\n",
+    "# and the way it is written above in the scores variable?"
    ]
   },
   {
diff --git a/s24/Louis_Lecture_Notes/26_Files_and_Directories/scores.json b/s24/Louis_Lecture_Notes/26_Files_and_Directories/scores.json
new file mode 100644
index 0000000000000000000000000000000000000000..b6e7f9f8952cf307bc6b02a1c8ded1ab0bd464ac
--- /dev/null
+++ b/s24/Louis_Lecture_Notes/26_Files_and_Directories/scores.json
@@ -0,0 +1,12 @@
+{
+  "john": [
+    83,
+    92,
+    74
+  ],
+  "sally": [
+    88,
+    97,
+    81
+  ]
+}
\ No newline at end of file