I used for loop to loop the square 4 times instead of just writing it 4 times.

It wasnt't that difficult. I took CSE 115 over the summer where we learned python.I just used the note for the class to refreash my knowledge of loop.

square.py

@@ -1,17 +1,10 @@
 from turtle import *
 
 def square(side_length):
-    forward(side_length)
-    right(90)
-    forward(side_length)
-    right(90)
-    forward(side_length)
-    right(90)
-    forward(side_length)
-    right(90)
-
-sizes = [20, 40, 60, 80, 100]
-for size in sizes:
-    square(size)
-input()
-
+    for i in [1,2,3,4]:
+        forward(side_length)
+        right(90)
+square(200)
+square(150)
+square(100)
+square(50)