diff --git a/src/teaching/cse-562/2019sp/index.erb b/src/teaching/cse-562/2019sp/index.erb
index fb2c6259..9872d2cf 100644
--- a/src/teaching/cse-562/2019sp/index.erb
+++ b/src/teaching/cse-562/2019sp/index.erb
@@ -181,19 +181,20 @@ schedule:
       slides: "slide/2019-04-19-ParallelUpdates.pdf"
   - date: "Apr 24"
     due: "Homework 8"
-    topic: "TBD"
-    textbook: "Ch. 20.5-20.6"
+    topic: "Provenance / Datalog"
+    materials:
+      slides: "provenance/2019-04-24-Provenance.html"
   - date: "Apr 26"
-    topic: "Stream Queries"
+    topic: "Provenance Semirings"
     textbook: "Ch. 23.4"
   - date: "Apr 29"
-    topic: "TBD"
+    topic: "Implementing Provenance Queries"
     textbook: "Ch. 23.5"
   - date: "May 1"
     due: "Homework 9"
-    topic: "Provenance Queries"
+    topic: "Provenance and Uncertainty"
   - date: "May 3"
-    topic: "Provenance for Uncertainty"
+    topic: "TBD"
   - date: "May 6"
     due: "Homework 10"
     topic: "Buffer Day"