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diff --git a/exercises/_assignment6.mdwn b/exercises/_assignment6.mdwn
index 9a3d04c0..86c398ff 100644
--- a/exercises/_assignment6.mdwn
+++ b/exercises/_assignment6.mdwn
@@ -112,3 +112,21 @@ our scorecard.  On the simple-minded view, we would replace it with
 `w`.  But that's not the right result, because `w` itself has been
 mapped onto 2.
 
+## Baby monads
+
+(Depends on lecture notes for safe division by zero.)
+
+Write a function `lift'` that generalized the correspondence between +
+and `add'`: that is, `lift'` takes any two-place operation on integers
+and returns a version that takes arguments of type `int option`
+instead, returning a result of `int option`.  In other words, `lift'`
+will have type:
+
+	(int -> int -> int) -> (int option) -> (int option) -> (int option)
+
+so that `lift' (+) (Some 3) (Some 4)` will evalute to `Some 7`.
+Don't worry about why you need to put `+` inside of parentheses.
+You should make use of `bind'` in your definition of `lift'`:
+
+	let bind' (u: int option) (f: int -> (int option)) =
+		match u with None -> None | Some x -> f x;;