diff --git a/slides/2.yml b/slides/2.yml
index 0f428f09..35ae280e 100644
--- a/slides/2.yml
+++ b/slides/2.yml
@@ -20,11 +20,11 @@ content:
 - shared/chat-room-im.md
 #- shared/chat-room-zoom-meeting.md
 #- shared/chat-room-zoom-webinar.md
+- shared/prereqs.md
+#- shared/webssh.md
+- shared/connecting.md
 - shared/toc.md
 - # 1
-  - shared/prereqs.md
-  #- shared/webssh.md
-  - shared/connecting.md
   #- k8s/versions-k8s.md
   - shared/sampleapp.md
   #- shared/composescale.md
diff --git a/slides/3.yml b/slides/3.yml
index 59590076..970d5d66 100644
--- a/slides/3.yml
+++ b/slides/3.yml
@@ -18,19 +18,22 @@ content:
 #- logistics.md
 - k8s/intro.md
 - shared/about-slides.md
+- shared/prereqs.md
+- shared/webssh.md
+- shared/connecting.md
 #- shared/chat-room-im.md
 #- shared/chat-room-zoom.md
 - shared/toc.md
 -
-  - shared/prereqs.md
-  - shared/webssh.md
-  - shared/connecting.md
   - k8s/kustomize.md
   - k8s/helm-intro.md
   - k8s/helm-chart-format.md
   - k8s/helm-create-basic-chart.md
   - k8s/helm-create-better-chart.md
   - k8s/helm-secrets.md
-  #- k8s/exercise-helm.md
-  - shared/thankyou.md
-  - k8s/links.md
+-
+  - k8s/cert-manager.md
+  - k8s/gitlab.md
+  - |
+    # (Extra content)
+  - k8s/prometheus.md
diff --git a/slides/4.yml b/slides/4.yml
index f13e158f..fa381417 100644
--- a/slides/4.yml
+++ b/slides/4.yml
@@ -19,29 +19,32 @@ content:
 - shared/about-slides.md
 - shared/chat-room-im.md
 #- shared/chat-room-zoom.md
+- shared/prereqs.md
+- shared/webssh.md
+- shared/connecting.md
 - shared/toc.md
--
-  - shared/prereqs.md
-  - shared/webssh.md
-  - shared/connecting.md
+- #1
   - k8s/netpol.md
   - k8s/authn-authz.md
--
+- #2
   - k8s/extending-api.md
   - k8s/operators.md
--
+  - k8s/sealed-secrets.md
+  - k8s/crd.md
+- #3
   - k8s/resource-limits.md
   - k8s/metrics-server.md
   - k8s/cluster-sizing.md
   - k8s/horizontal-pod-autoscaler.md
+- #4
+  - k8s/aggregation-layer.md
   - k8s/prometheus.md
--
+  - k8s/hpa-v2.md
+- #5
+  - k8s/admission.md
+  - k8s/kyverno.md
+- #6
   - k8s/statefulsets.md
   - k8s/local-persistent-volumes.md
+  - k8s/eck.md
   - k8s/portworx.md
-  - shared/thankyou.md
--
-  - |
-    # (Bonus material)
-  - k8s/podsecuritypolicy.md
-  - k8s/operators-design.md
diff --git a/slides/shared/prereqs.md b/slides/shared/prereqs.md
index 78c9b079..c37ad657 100644
--- a/slides/shared/prereqs.md
+++ b/slides/shared/prereqs.md
@@ -1,4 +1,4 @@
-# Pre-requirements
+## Pre-requirements
 
 - Be comfortable with the UNIX command line