diff --git a/3-terrarium/3-intro-to-DOM-and-closures/assignment.md b/3-terrarium/3-intro-to-DOM-and-closures/assignment.md
index 03865021..3294937f 100644
--- a/3-terrarium/3-intro-to-DOM-and-closures/assignment.md
+++ b/3-terrarium/3-intro-to-DOM-and-closures/assignment.md
@@ -2,7 +2,7 @@
 
 ## Instructions
 
-Research the DOM a little more by 'adoping' a DOM element. Visit the MSDN's [list of DOM interfaces](https://developer.mozilla.org/en-US/docs/Web/API/Document_Object_Model) and pick one. Find it being used on a web site in the web, and write an explanation of how it is used.
+Research the DOM a little more by 'adopting' a DOM element. Visit the MSDN's [list of DOM interfaces](https://developer.mozilla.org/en-US/docs/Web/API/Document_Object_Model) and pick one. Find it being used on a web site in the web, and write an explanation of how it is used.
 
 ## Rubric