diff --git a/03-writing_code_activity.Rmd b/03-writing_code_activity.Rmd
index a21df6f0..400caf53 100644
--- a/03-writing_code_activity.Rmd
+++ b/03-writing_code_activity.Rmd
@@ -4,7 +4,7 @@
 ottrpal::set_knitr_image_path()
 ```
 
-# Writing Code: Hands-On Exercise 
+# Writing Code - Hands-On Exercise 
 
 Now it’s your turn to try!
 
diff --git a/04-refactoring_activity.Rmd b/04-refactoring_activity.Rmd
index bf2b53ca..7a21819e 100644
--- a/04-refactoring_activity.Rmd
+++ b/04-refactoring_activity.Rmd
@@ -8,7 +8,7 @@ ottrpal::set_knitr_image_path()
 ```
 
 
-# Refactoring Code: Hands-On Exercise
+# Refactoring Code - Hands-On Exercise
 
 Now it's your turn to try. 
 
diff --git a/05-annotation_activity.Rmd b/05-annotation_activity.Rmd
index 170894a3..791eceaa 100644
--- a/05-annotation_activity.Rmd
+++ b/05-annotation_activity.Rmd
@@ -1,4 +1,4 @@
-# Annotation: Hands-On Exercise 
+# Annotation - Hands-On Exercise 
 
 Now it's your turn to try! 
 
diff --git a/06-understanding_other_ppl_code_activity.Rmd b/06-understanding_other_ppl_code_activity.Rmd
index 0427e89f..13569168 100644
--- a/06-understanding_other_ppl_code_activity.Rmd
+++ b/06-understanding_other_ppl_code_activity.Rmd
@@ -1,4 +1,4 @@
-# Understanding Unfamiliar Code: Hands-On Exercise 
+# Understanding Unfamiliar Code - Hands-On Exercise 
 
 Now it's your turn to try! 
 
diff --git a/07-bio_code_activity.Rmd b/07-bio_code_activity.Rmd
index d0e1bae3..f4421e4a 100644
--- a/07-bio_code_activity.Rmd
+++ b/07-bio_code_activity.Rmd
@@ -2,7 +2,7 @@
 ```{r, include = FALSE}
 ottrpal::set_knitr_image_path()
 ```
-# AI for Bioinformatics: Hands-On Exercise
+# AI for Bioinformatics - Hands-On Exercise
 
 Now it's your turn to try.