diff --git a/src/teaching/cse-562/2019sp/slide/2019-04-08-Checkpoint3.erb b/src/teaching/cse-562/2019sp/slide/2019-04-08-Checkpoint3.erb
index 63090e0e..7e7d394a 100644
--- a/src/teaching/cse-562/2019sp/slide/2019-04-08-Checkpoint3.erb
+++ b/src/teaching/cse-562/2019sp/slide/2019-04-08-Checkpoint3.erb
@@ -336,10 +336,10 @@ java.util.jar.JarFile.getJarEntry(JarFile.java:180)
   <section>
     <h3>Suggestion: Start Simple</h3>
     <ul>
-      <li>Build indexes</li>
-      <li>Save the index to disk</li>
-      <li>Pick "the right" index to use for a query</li>
-      <li>Use an index scan</li>
+      <li>In-Mem/On-Disk Index Builder</li>
+      <li>Optimizer += Index Selection (e.g., selectivity)</li>
+      <li>Index Scan</li>
+      <li>Index Nested Loop Join</li>
     </ul>
   </section>
 </section>
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