diff --git a/src/teaching/cse-250/2022fa/index.erb b/src/teaching/cse-250/2022fa/index.erb
index 6f2c6ac3..c7245c6a 100644
--- a/src/teaching/cse-250/2022fa/index.erb
+++ b/src/teaching/cse-250/2022fa/index.erb
@@ -497,6 +497,10 @@ schedule:
     - date: 12/02/22
       dow: Fri
       topic: Spatial Indexes
+      section_a:
+        slides: slide/lec37.pdf
+      section_b:
+        slides: slide/lec37.pdf
   - week: 15
     lectures:
     - date: 12/05/22
diff --git a/src/teaching/cse-250/2022fa/slide/lec37.pdf b/src/teaching/cse-250/2022fa/slide/lec37.pdf
new file mode 100644
index 00000000..817b0722
Binary files /dev/null and b/src/teaching/cse-250/2022fa/slide/lec37.pdf differ