diff --git a/sisr1/tp01-02/README.md b/sisr1/tp01-02/README.md
index e295f33..07938af 100644
--- a/sisr1/tp01-02/README.md
+++ b/sisr1/tp01-02/README.md
@@ -1 +1,2 @@
-Each folder is called files_{Virtual Machine's name}.
\ No newline at end of file
+Each folder is called files_{Virtual Machine's name}.
+First and second practical work's folders, combined.
\ No newline at end of file
diff --git a/sisr1/tp03/README.md b/sisr1/tp03/README.md
index e295f33..cabd08b 100644
--- a/sisr1/tp03/README.md
+++ b/sisr1/tp03/README.md
@@ -1 +1,2 @@
-Each folder is called files_{Virtual Machine's name}.
\ No newline at end of file
+Each folder is called files_{Virtual Machine's name}.
+Third practical work's folder.
\ No newline at end of file
diff --git a/sisr1/tp04/README.md b/sisr1/tp04/README.md
index 1a533f2..c81b01d 100644
--- a/sisr1/tp04/README.md
+++ b/sisr1/tp04/README.md
@@ -1 +1,2 @@
-Folders bear an explicit name, unlike the predecessors.
\ No newline at end of file
+Folders bear an explicit name, unlike the predecessors.
+Fourth practical work's folder.
\ No newline at end of file
diff --git a/sisr1/tp05/README.md b/sisr1/tp05/README.md
new file mode 100644
index 0000000..0f08bd0
--- /dev/null
+++ b/sisr1/tp05/README.md
@@ -0,0 +1 @@
+Fifth practical work's folder, currently unused. Contents of this file must be changed once populated.
\ No newline at end of file