diff --git a/docs/content/tutorial/step_12.ngdoc b/docs/content/tutorial/step_12.ngdoc
index f9ac9adade07..a82daace3373 100644
--- a/docs/content/tutorial/step_12.ngdoc
+++ b/docs/content/tutorial/step_12.ngdoc
@@ -357,10 +357,10 @@ For more on CSS animations, see the
 ## Animating `ngClass` with JavaScript
 
 Let's add another animation to our application. Switching to our `phone-detail.html` page,
-we see that we have a nice thumbnail swapper. By clicking on the thumbnails listed on the page,
+we see that we have a nice thumbnail swapper. By entering on the thumbnails listed on the page,
 the profile phone image changes. But how can we change this around to add animations?
 
-Let's think about it first. Basically, when you click on a thumbnail image, you're changing the
+Let's think about it first. Basically, when you enter on a thumbnail image, you're changing the
 state of the profile image to reflect the newly selected thumbnail image.
 The best way to specify state changes within HTML is to use classes.
 Much like before, how we used a CSS class to specify an animation, this time the animation will