diff --git a/2019/2019-09-09_testCourseAdv/slides/list.json b/2019/2019-09-09_testCourseAdv/slides/list.json
index 55cf515dfa95ecd49332a3406f8ace478fb98456..ea4287834f95791b2bcf23b9e41a4a43d109f06f 100644
--- a/2019/2019-09-09_testCourseAdv/slides/list.json
+++ b/2019/2019-09-09_testCourseAdv/slides/list.json
@@ -30,22 +30,17 @@
         }
     },
     {
-        "filename": "rebase-iPresentation2.md",
-        "attr": {
-        }
-    },
-    {
-        "filename": "rebase-iPresentation4.md",
+        "filename": "rebase-iPresentation1.md",
         "attr": {
         }
     },
     {
-        "filename": "rebase-iPresentation5.md",
+        "filename": "rebase-iPresentation2.md",
         "attr": {
         }
     },
     {
-        "filename": "rebase-iPresentation6.md",
+        "filename": "rebase-iPresentation3.md",
         "attr": {
         }
     },
diff --git a/2019/2019-09-09_testCourseAdv/slides/rebase-iPresentation1.md b/2019/2019-09-09_testCourseAdv/slides/rebase-iPresentation1.md
new file mode 100644
index 0000000000000000000000000000000000000000..e5c9f722be3cffede4438d644488f9f5ca38ddea
--- /dev/null
+++ b/2019/2019-09-09_testCourseAdv/slides/rebase-iPresentation1.md
@@ -0,0 +1,16 @@
+## Interactive Rebase Workshop
+
+* Create and switch to your own branch  
+* Add and commit two files to this branch:  
+
+```bash
+$ echo "Name of one attendee" > attendeeName.md
+git add attendeeName.md
+git commit -m "Add name to the list of attendees"
+git push origin yourBranch
+
+$ echo "Name of a second attendee" > attendeeName2.md
+git add attendeeName2.md
+git commit -m "Add name to the list of attendees"
+git push origin yourBranch
+```
\ No newline at end of file
diff --git a/2019/2019-09-09_testCourseAdv/slides/rebase-iPresentation2.md b/2019/2019-09-09_testCourseAdv/slides/rebase-iPresentation2.md
index e5c9f722be3cffede4438d644488f9f5ca38ddea..d836b3e036b7350156062368d4ea49ac2ecb1e9d 100644
--- a/2019/2019-09-09_testCourseAdv/slides/rebase-iPresentation2.md
+++ b/2019/2019-09-09_testCourseAdv/slides/rebase-iPresentation2.md
@@ -1,16 +1,12 @@
 ## Interactive Rebase Workshop
 
-* Create and switch to your own branch  
-* Add and commit two files to this branch:  
+* Perform an interactive rebase onto the develop branch  
 
 ```bash
-$ echo "Name of one attendee" > attendeeName.md
-git add attendeeName.md
-git commit -m "Add name to the list of attendees"
-git push origin yourBranch
+git rebase -i develop
+```
 
-$ echo "Name of a second attendee" > attendeeName2.md
-git add attendeeName2.md
-git commit -m "Add name to the list of attendees"
-git push origin yourBranch
-```
\ No newline at end of file
+* reword the first commit's message to:  
+`These are the two squashed commits`  
+* combine the second and first commit into one,  
+omitting the second's commit message.
\ No newline at end of file
diff --git a/2019/2019-09-09_testCourseAdv/slides/rebase-iPresentation6.md b/2019/2019-09-09_testCourseAdv/slides/rebase-iPresentation3.md
similarity index 100%
rename from 2019/2019-09-09_testCourseAdv/slides/rebase-iPresentation6.md
rename to 2019/2019-09-09_testCourseAdv/slides/rebase-iPresentation3.md
diff --git a/2019/2019-09-09_testCourseAdv/slides/rebase-iPresentation4.md b/2019/2019-09-09_testCourseAdv/slides/rebase-iPresentation4.md
deleted file mode 100644
index d836b3e036b7350156062368d4ea49ac2ecb1e9d..0000000000000000000000000000000000000000
--- a/2019/2019-09-09_testCourseAdv/slides/rebase-iPresentation4.md
+++ /dev/null
@@ -1,12 +0,0 @@
-## Interactive Rebase Workshop
-
-* Perform an interactive rebase onto the develop branch  
-
-```bash
-git rebase -i develop
-```
-
-* reword the first commit's message to:  
-`These are the two squashed commits`  
-* combine the second and first commit into one,  
-omitting the second's commit message.
\ No newline at end of file