-* Lambda evaluator (will be posted soon)
-* [[Introducing Monads|topics/week7_introducing_monads]] (updated Fri 20 Mar)
-* [[Homework for week 7|exercises/assignment7]]
+* [[Introducing Monads|topics/week7_introducing_monads]] (updated Mon 23 Mar)
+* [[Homework for week 7|exercises/assignment7]] (updated Mon 23 Mar)
+* [[Environments and Closures|topics/week7_environments_and_closures]]
+* [[Untyped lambda evaluator|topics/week7_untyped_evaluator]]
+
+
+Week 8:
+
+* [[Safe division with monads|topics/week8_safe_division_with_monads]]
+