diff --git a/client/i18n/locales/english/intro.json b/client/i18n/locales/english/intro.json
index 4f3f5a22701..8da0d106e95 100644
--- a/client/i18n/locales/english/intro.json
+++ b/client/i18n/locales/english/intro.json
@@ -2590,7 +2590,8 @@
       "review-javascript-comparisons-and-conditionals": {
         "title": "JavaScript Comparisons and Conditionals Review",
         "intro": [
-          "Review the JavaScript Comparisons and Conditionals concepts to prepare for the upcoming quiz."
+          "Before you are quizzed on working with conditionals, you first need to review.",
+          "Open up this page to review how to work with <code>switch</code> statements, other types of conditionals and more."
         ]
       },
       "quiz-javascript-comparisons-and-conditionals": {
diff --git a/curriculum/challenges/english/25-front-end-development/review-javascript-comparisons-and-conditionals/6723c554025f449f4f39c3f5.md b/curriculum/challenges/english/25-front-end-development/review-javascript-comparisons-and-conditionals/6723c554025f449f4f39c3f5.md
index 1aa8566273c..0c66d51a192 100644
--- a/curriculum/challenges/english/25-front-end-development/review-javascript-comparisons-and-conditionals/6723c554025f449f4f39c3f5.md
+++ b/curriculum/challenges/english/25-front-end-development/review-javascript-comparisons-and-conditionals/6723c554025f449f4f39c3f5.md
@@ -9,7 +9,56 @@ dashedName: review-javascript-comparisons-and-conditionals
 
 Review the concepts below to prepare for the upcoming quiz.
 
+## Comparisons and the `null` and `undefined` Data Types
 
+- **Comparisons and `undefined`**: A variable is `undefined` when it has been declared but hasn't been assigned a value. It's the default value of uninitialized variables and function parameters that weren't provided an argument. `undefined` converts to `NaN` in numeric contexts, which makes all numeric comparisons with `undefined` return `false`.
+
+```js
+console.log(undefined > 0);  // false
+console.log(undefined < 0);  // false
+console.log(undefined == 0); // false
+```
+
+- **Comparisons and `null`**: The `null` type represents the intentional absence of a value. When using the equality operator, `null` and `undefined` are considered equal. However, when using the strict equality operator (`===`), which checks both value and type without performing type coercion, `null` and `undefined` are not equal:
+
+```js
+console.log(null == undefined); // true
+console.log(null === undefined); // false
+```
+
+## `switch` Statements
+
+- **Definition**: A `switch` statement evaluates an expression and matches its value against a series of `case` clauses. When a match is found, the code block associated with that case is executed. 
+
+```js
+const dayOfWeek = 3; 
+
+switch (dayOfWeek) {
+  case 1:
+    console.log("It's Monday! Time to start the week strong.");
+    break;
+  case 2:
+    console.log("It's Tuesday! Keep the momentum going.");
+    break;
+  case 3:
+    console.log("It's Wednesday! We're halfway there.");
+    break;
+  case 4:
+    console.log("It's Thursday! Almost the weekend.");
+    break;
+  case 5:
+    console.log("It's Friday! The weekend is near.");
+    break;
+  case 6:
+    console.log("It's Saturday! Enjoy your weekend.");
+    break;
+  case 7:
+    console.log("It's Sunday! Rest and recharge.");
+    break;
+  default:
+    console.log("Invalid day! Please enter a number between 1 and 7.");
+}
+```
 
 # --assignment--