diff --git a/examples/1-basic-concepts/understanding-data-part-1/python.bpmn b/examples/1-basic-concepts/understanding-data-part-1/python.bpmn
index 8d962ec0..a6bad0e4 100644
--- a/examples/1-basic-concepts/understanding-data-part-1/python.bpmn
+++ b/examples/1-basic-concepts/understanding-data-part-1/python.bpmn
@@ -8,12 +8,24 @@
     <bpmn:scriptTask id="Activity_10fbwgl" name="Simple Script Task">
       <bpmn:incoming>Flow_0bngcu2</bpmn:incoming>
       <bpmn:script>
-# Variables
-age = 54 # This is an integer
+# Creating Variables
+age = 51 # This is an integer
 height = 1.93 # This is a float or "floating point number"
 children = ['Robert', 'Edward', 'Tad', 'Willie'] # This is a list
 is_married = True # This is a boolean
 
+# Updating Variables
+Age = 50  # Variables are case sensitive, this is a new variable.
+age = 54  # This updates the age variable.
+
+# Referencing variables
+my_age = age # my_age is now set to 54
+
+# Deleting variables
+del(Age)  # The age variable no longer exists.  You will get an error if you try to use it.
+
+
+
 # This is a dictionary, and you will use a lot of them...
 cabinet = {
     "Secretary of State": "William H. Seward",