diff --git a/slides/assessment.html b/slides/assessment.html
index 65c154813e555d777e1f719968d3301c35e2ae72..71fd6b85c79e95d61e47f256df468f895f704ce0 100644
--- a/slides/assessment.html
+++ b/slides/assessment.html
@@ -358,6 +358,7 @@ More commonly available today than ever
 Let's try it: Form groups and open [YouDescribe](https://youdescribe.org/);
 ([post a link to your video](TBD))
 
+If you want to know more: [describing educational videos](https://dcmp.org/learn/descriptionkey)
 ---
 # POUR: Perceivable: Guidelines 1.1-1.4