diff --git a/Running Start/CSB320 - Machine Learning Concepts/Class 5-28 (Clustering).md b/Running Start/CSB320 - Machine Learning Concepts/Class 5-28 (Clustering).md
index acb03df..a645c79 100644
--- a/Running Start/CSB320 - Machine Learning Concepts/Class 5-28 (Clustering).md	
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@@ -1,3 +1,9 @@
 #rs/class/csb320 #rs/notes 
 - - -
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+- Everything so far has been supervised learning (mostly)
+- unsupervised learning (clustering)
+	- do not know the labels of data.
+- clustering
+	- groups instances based on feature similarity
+	- results in group assignments, not target output
+	- 
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