diff --git a/1-Introduction/01-defining-data-science/assignment.md b/1-Introduction/01-defining-data-science/assignment.md
index 5e8529a..f430e2b 100644
--- a/1-Introduction/01-defining-data-science/assignment.md
+++ b/1-Introduction/01-defining-data-science/assignment.md
@@ -18,11 +18,11 @@ Here are some of the problem domains and problems that can get you started think
 
 Fill in the following table (substitute suggested problem domains for your own ones if needed):
 
-| Problem | Which data to collect | How to store the data | Which insights/decisions we can make | 
+| Problem Domain | Problem | Which data to collect | How to store the data | Which insights/decisions we can make | 
 |---------|-----------------------|-----------------------|--------------------------------------|
-| Education | | | |
-| Vaccination | | | |
-| Productivity | | | |
+| Education | | | | |
+| Vaccination | | | | |
+| Productivity | | | | |
 
 ## Rubric