diff --git a/src/teaching/cse-350/2024sp/index.erb b/src/teaching/cse-350/2024sp/index.erb
index 919c2a8c..35a136e8 100644
--- a/src/teaching/cse-350/2024sp/index.erb
+++ b/src/teaching/cse-350/2024sp/index.erb
@@ -39,10 +39,12 @@ schedule:
       cdf-index: https://arxiv.org/pdf/1712.01208.pdf
   - topic: The RAM and EM models
     detail: A review of the memory hierarchy, formalizing the external memory model, and an overview of techniques for managing data in external memory, including sorting as an example.
+    docs:
+      notes: slide/05-em_model.pdf
   - topic: B+ Trees
     detail: We build a B+ Tree from first principles and binary search
     docs:
-      notes: slide/04-serialization.pdf
+      notes: slide/06-bplustrees.pdf
   - topic: Write-Optimized structures
     detail: We build up LSM trees and Beta-Epsilon Trees from first principles
   - topic: The Shuffle Operation
diff --git a/src/teaching/cse-350/2024sp/slide/05-em_model.pdf b/src/teaching/cse-350/2024sp/slide/05-em_model.pdf
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diff --git a/src/teaching/cse-350/2024sp/slide/06-bplustrees.pdf b/src/teaching/cse-350/2024sp/slide/06-bplustrees.pdf
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