diff --git a/notes-and-examples/2026.05.06/homework.py b/notes-and-examples/2026.05.06/homework.py
index 2c127de..265dde7 100644
--- a/notes-and-examples/2026.05.06/homework.py
+++ b/notes-and-examples/2026.05.06/homework.py
@@ -4,6 +4,14 @@ class Student:
         self.year = year
 
 
+class Node:
+    next = None
+    previous = None
+
+    def __init__(self, student: Student):
+        self.student = student
+
+
 # homework: implement this Queue which orders students by year.
 # students with a higher year are placed in front of students with a lower year
 class Queue:
diff --git a/notes-and-examples/2026.05.13/homework.py b/notes-and-examples/2026.05.13/homework.py
new file mode 100644
index 0000000..e69de29