diff --git a/guide/english/certifications/javascript-algorithms-and-data-structures/es6/prevent-object-mutation/index.md b/guide/english/certifications/javascript-algorithms-and-data-structures/es6/prevent-object-mutation/index.md
index 4b6b0c5ef7..82ab8752e4 100644
--- a/guide/english/certifications/javascript-algorithms-and-data-structures/es6/prevent-object-mutation/index.md
+++ b/guide/english/certifications/javascript-algorithms-and-data-structures/es6/prevent-object-mutation/index.md
@@ -1,17 +1,15 @@
 ---
 title: Prevent Object Mutation
 ---
-![](//discourse-user-assets.s3.amazonaws.com/original/2X/3/3c8584a085a0deaea66b3400e6321eeadab552a2.jpg)
-
 ![:triangular_flag_on_post:](https://forum.freecodecamp.com/images/emoji/emoji_one/triangular_flag_on_post.png?v=3 ":triangular_flag_on_post:") Remember to use <a>**`Read-Search-Ask`**</a> if you get stuck. Try to pair program ![:busts_in_silhouette:](https://forum.freecodecamp.com/images/emoji/emoji_one/busts_in_silhouette.png?v=3 ":busts_in_silhouette:") and write your own code ![:pencil:](https://forum.freecodecamp.com/images/emoji/emoji_one/pencil.png?v=3 ":pencil:")
 
 ### Problem Explanation:
 
-We need to prevent `MATH_CONSTANTS` value from changing.
+_You need to freeze the `MATH_CONSTANTS` object so that no one is able to alter the value of `PI`, add, or delete properties ._
 
 ## ![:speech_balloon:](https://forum.freecodecamp.com/images/emoji/emoji_one/speech_balloon.png?v=3 ":speech_balloon:") Hint: 1
 
-*   Use Object.freeze(obj) to prevent object from being changed.
+*   _Use `Object.freeze()` to prevent mathematical constants from changing._
 
 > _try to solve the problem now_
 
@@ -19,9 +17,9 @@ We need to prevent `MATH_CONSTANTS` value from changing.
 
 ![warning sign](//discourse-user-assets.s3.amazonaws.com/original/2X/2/2d6c412a50797771301e7ceabd554cef4edcd74d.gif)
 
-**Solution ahead!**
+**Solution Ahead!**
 
-## ![:beginner:](https://forum.freecodecamp.com/images/emoji/emoji_one/beginner.png?v=3 ":beginner:") Basic Code Solution:
+## ![:beginner:](https://forum.freecodecamp.com/images/emoji/emoji_one/beginner.png?v=3 ":beginner:") Basic code solution:
 ```javascript
     function freezeObj() {
       "use strict";
@@ -41,21 +39,10 @@ We need to prevent `MATH_CONSTANTS` value from changing.
     
     const PI = freezeObj();
 ```
-![:rocket:](https://forum.freecodecamp.com/images/emoji/emoji_one/rocket.png?v=3 ":rocket:") <a href='https://codepen.io/dylantyates/pen/OwVxYB' target='_blank' rel='nofollow'>Run Code</a>
-
 # Code Explanation:
 
 By using Object.freeze() on `MATH_CONSTANTS` we can avoid manipulating it.
 
-#### Relevant Links
 
-*   <a href='https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/freeze' target='_blank' rel='nofollow'>Object.freeze()</a>
-
-## ![:clipboard:](https://forum.freecodecamp.com/images/emoji/emoji_one/clipboard.png?v=3 ":clipboard:") NOTES FOR CONTRIBUTIONS:
-
-*   ![:warning:](https://forum.freecodecamp.com/images/emoji/emoji_one/warning.png?v=3 ":warning:") **DO NOT** add solutions that are similar to any existing solutions. If you think it is **_similar but better_**, then try to merge (or replace) the existing similar solution.
-*   Add an explanation of your solution.
-*   Categorize the solution in one of the following categories — **Basic**, **Intermediate** and **Advanced**. ![:traffic_light:](https://forum.freecodecamp.com/images/emoji/emoji_one/traffic_light.png?v=3 ":traffic_light:")
-*   Please add your username only if you have added any **relevant main contents**. (![:warning:](https://forum.freecodecamp.com/images/emoji/emoji_one/warning.png?v=3 ":warning:") **_DO NOT_** _remove any existing usernames_)
-
-> See ![:point_right:](https://forum.freecodecamp.com/images/emoji/emoji_one/point_right.png?v=3 ":point_right:") <a href='http://forum.freecodecamp.com/t/algorithm-article-template/14272' target='_blank' rel='nofollow'>**`Wiki Challenge Solution Template`**</a> for reference.
+### Resources
+- ["Object.freeze()" - *MDN Javascript reference*](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/freeze)