diff --git a/_modules/week-07.md b/_modules/week-07.md
index 95a6a12..1be1698 100644
--- a/_modules/week-07.md
+++ b/_modules/week-07.md
@@ -12,6 +12,8 @@ Oct 8
 Oct 10
 : **Lecture 13**{: .label .label-lecture} [Gradient descent / sklearn](lecture/lec13)
 : **Lecture Participation 13**{: .label .label-survey } [Lecture Participation 13](https://app.sli.do/event/dQqF2B9C3MxUgacXViv8yY/embed/polls/5dfa1689-512a-4b90-b963-e5ba21d31432){:target="_blank"}
+: **Exam Prep 6**{: .label .label-examprep } [OLS, Gradient Descent](https://drive.google.com/file/d/1EhkplzSAcEC9E4Z194dRjtm9nnzfuxBm/view?usp=sharing){:target="_blank"}
+    : [Solutions](https://drive.google.com/file/d/1u_r-jtM2FBoxFZXXHklWRFdNtyy51EAo/view?usp=sharing){:target="_blank"}
 
 Oct 11
 : **Lab 6**{: .label .label-lab }  OLS (due Oct 15)