diff --git a/config.yaml b/config.yaml
index 61a0e27..eb7ef48 100644
--- a/config.yaml
+++ b/config.yaml
@@ -61,10 +61,12 @@ contact: 'robert.chisholm@sheffield.ac.uk'
 episodes: 
 - profiling-introduction.md
 - profiling-functions.md
+- short-break1.md
 - profiling-lines.md
 - profiling-conclusion.md
 - optimisation-introduction.md
 - optimisation-data-structures-algorithms.md
+- long-break1.md
 - optimisation-minimise-python.md
 - optimisation-use-latest.md
 - optimisation-memory.md
diff --git a/episodes/long-break1.md b/episodes/long-break1.md
new file mode 100644
index 0000000..d28a91b
--- /dev/null
+++ b/episodes/long-break1.md
@@ -0,0 +1,8 @@
+---
+title: Break
+teaching: 0
+exercises: 0
+break: 60
+---
+
+Take a break. If you can, move around and look at something away from your screen to give your eyes a rest.
\ No newline at end of file
diff --git a/episodes/optimisation-conclusion.md b/episodes/optimisation-conclusion.md
index a3ae361..7666df1 100644
--- a/episodes/optimisation-conclusion.md
+++ b/episodes/optimisation-conclusion.md
@@ -1,6 +1,6 @@
 ---
 title: "Optimisation Conclusion"
-teaching: 0
+teaching: 5
 exercises: 0
 ---
 
diff --git a/episodes/optimisation-data-structures-algorithms.md b/episodes/optimisation-data-structures-algorithms.md
index 915df20..0c1c8d3 100644
--- a/episodes/optimisation-data-structures-algorithms.md
+++ b/episodes/optimisation-data-structures-algorithms.md
@@ -1,7 +1,7 @@
 ---
 title: "Data Structures & Algorithms"
-teaching: 0
-exercises: 0
+teaching: 30
+exercises: 5
 ---
 
 :::::::::::::::::::::::::::::::::::::: questions
diff --git a/episodes/optimisation-introduction.md b/episodes/optimisation-introduction.md
index 2902d6b..1650962 100644
--- a/episodes/optimisation-introduction.md
+++ b/episodes/optimisation-introduction.md
@@ -1,6 +1,6 @@
 ---
 title: "Introduction to Optimisation"
-teaching: 0
+teaching: 10
 exercises: 0
 ---
 
diff --git a/episodes/optimisation-memory.md b/episodes/optimisation-memory.md
index c58f507..2750031 100644
--- a/episodes/optimisation-memory.md
+++ b/episodes/optimisation-memory.md
@@ -1,6 +1,6 @@
 ---
 title: "Understanding Memory"
-teaching: 0
+teaching: 30
 exercises: 0
 ---
 
diff --git a/episodes/optimisation-minimise-python.md b/episodes/optimisation-minimise-python.md
index 43597fd..0e2666f 100644
--- a/episodes/optimisation-minimise-python.md
+++ b/episodes/optimisation-minimise-python.md
@@ -1,6 +1,6 @@
 ---
 title: "Understanding Python (NumPy/Pandas)"
-teaching: 0
+teaching: 30
 exercises: 0
 ---
 
diff --git a/episodes/optimisation-use-latest.md b/episodes/optimisation-use-latest.md
index 59e90fe..cabe6fa 100644
--- a/episodes/optimisation-use-latest.md
+++ b/episodes/optimisation-use-latest.md
@@ -1,6 +1,6 @@
 ---
 title: "Keep Python & Packages up to Date"
-teaching: 0
+teaching: 10
 exercises: 0
 ---
 
diff --git a/episodes/profiling-conclusion.md b/episodes/profiling-conclusion.md
index 4aa696d..820a16a 100644
--- a/episodes/profiling-conclusion.md
+++ b/episodes/profiling-conclusion.md
@@ -1,6 +1,6 @@
 ---
 title: "Profiling Conclusion"
-teaching: 0
+teaching: 5
 exercises: 0
 ---
 
diff --git a/episodes/profiling-functions.md b/episodes/profiling-functions.md
index 1ea1451..54ba38b 100644
--- a/episodes/profiling-functions.md
+++ b/episodes/profiling-functions.md
@@ -1,7 +1,7 @@
 ---
 title: "Function Level Profiling"
-teaching: 0
-exercises: 0
+teaching: 20
+exercises: 20
 ---
 
 :::::::::::::::::::::::::::::::::::::: questions
diff --git a/episodes/profiling-introduction.md b/episodes/profiling-introduction.md
index a40f742..ad58dc4 100644
--- a/episodes/profiling-introduction.md
+++ b/episodes/profiling-introduction.md
@@ -1,7 +1,7 @@
 ---
 title: "Introduction to Profiling"
-teaching: 0
-exercises: 0
+teaching: 15
+exercises: 10
 ---
 
 :::::::::::::::::::::::::::::::::::::: questions
diff --git a/episodes/profiling-lines.md b/episodes/profiling-lines.md
index 483e959..4ed5071 100644
--- a/episodes/profiling-lines.md
+++ b/episodes/profiling-lines.md
@@ -1,7 +1,7 @@
 ---
 title: "Line Level Profiling"
-teaching: 0
-exercises: 0
+teaching: 20
+exercises: 30
 ---
 
 :::::::::::::::::::::::::::::::::::::: questions
diff --git a/episodes/short-break1.md b/episodes/short-break1.md
new file mode 100644
index 0000000..bf28e04
--- /dev/null
+++ b/episodes/short-break1.md
@@ -0,0 +1,8 @@
+---
+title: Break
+teaching: 0
+exercises: 0
+break: 15
+---
+
+Take a break. If you can, move around and look at something away from your screen to give your eyes a rest and a chance to absorb the content covered so far.
\ No newline at end of file