diff --git a/300s School/NUCE 2100 - Fundamentals of Nuclear Engineering/2024-09-24 Week 5.md b/300s School/NUCE 2100 - Fundamentals of Nuclear Engineering/2024-09-24 Week 5.md
index c1d8d71b7..dc0b5a4c2 100644
--- a/300s School/NUCE 2100 - Fundamentals of Nuclear Engineering/2024-09-24 Week 5.md	
+++ b/300s School/NUCE 2100 - Fundamentals of Nuclear Engineering/2024-09-24 Week 5.md	
@@ -21,4 +21,6 @@ It's a bad approximation when:
 4. When scattering is strongly asnisotropic.
 # Module 6.3 - Neutron Diffusion - Non-Multiplying Media
 s(x) is generation
-Basically it's just solving differential equations. 
\ No newline at end of file
+Basically it's just solving differential equations. 
+# Module 6.4 - Multiplying Media
+Add fission
\ No newline at end of file