diff --git a/src/lecture_6.md b/src/lecture_6.md
index 1d089ff66f448b94358987f80eb95cd247bfa499..430a3439a7e2649b16f30c5537d81f4e3e8c6907 100644
--- a/src/lecture_6.md
+++ b/src/lecture_6.md
@@ -149,9 +149,8 @@ Extended BZ (n-th band within n-th BZ):
 
     After this lecture you will be able to:
 
-    - describe how an insulating or conducting nature of a material is related to the material's electronic band structure.
-    - examine 1D and 2D electronic band structures and argue if you expect the corresponding material to be an insulator/semiconductor or a conductor.
-    - describe how the light absorption spectrum of a material may be understood through its band structure.
+    - examine 1D and 2D band structures and argue if you expect the corresponding material to be an insulator/semiconductor or a conductor.
+    - describe how the light absorption spectrum of a material relates to its band structure.
     
 ## Band structure