diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..4a96c22
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+source .venv/bin/activate
\ No newline at end of file
diff --git a/poetry.lock b/poetry.lock
new file mode 100644
index 0000000..6e37ab5
--- /dev/null
+++ b/poetry.lock
@@ -0,0 +1,18 @@
+# This file is automatically @generated by Poetry 2.3.1 and should not be changed by hand.
+
+[[package]]
+name = "superturtle"
+version = "0.2.0"
+description = "Extensions to Python's turtle"
+optional = false
+python-versions = "<4.0,>=3.9"
+groups = ["main"]
+files = [
+    {file = "superturtle-0.2.0-py3-none-any.whl", hash = "sha256:ca3a31be3259387b4490846adbf64502acc9d23472912cc43497ab170e89f506"},
+    {file = "superturtle-0.2.0.tar.gz", hash = "sha256:807fb419c1dba9cb809a22a68e72c0193bdeed4a9326eb36ad940b2a7ff6ac04"},
+]
+
+[metadata]
+lock-version = "2.1"
+python-versions = ">=3.10,<4.0"
+content-hash = "6aad436bbbf760fa856344262eab22d62a167cac4e5dfefbf4be77d5a37428c9"
diff --git a/ranges.py b/ranges.py
index 2fa00d7..de0f1b9 100644
--- a/ranges.py
+++ b/ranges.py
@@ -8,16 +8,16 @@ def print_all_numbers(maximum):
         print(number)
 
 def print_even_numbers(maximum):
-    "Prints all even integers from 0 to maximum."
-    pass
+    for number in range(0, maximum, 2):
+        print(number)
 
 def print_odd_numbers(maximum):
-    "Prints all odd integers from 0 to maximum."
-    pass
+        for number in range(1, maximum, 2):
+            print(number)
 
 def print_multiples_of_five(maximum):
-    "Prints all integers which are multiples of five from 0 to maximum."
-    pass
+    for number in range(0, maximum, 5):
+        print(number)
 
 chosen_maximum = int(input("Choose a number: "))
 print(f"All numbers from 0 to {chosen_maximum}")
diff --git a/square.py b/square.py
index f1fb2a2..e47da71 100644
--- a/square.py
+++ b/square.py
@@ -1,17 +1,13 @@
 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)
+    for i in range (4):
+        forward(side_length)
+        right(90)
 
 sizes = [20, 40, 60, 80, 100]
 for size in sizes:
     square(size)
+
 input()
 
diff --git a/tile.py b/tile.py
index 697cf8e..eb79ec6 100644
--- a/tile.py
+++ b/tile.py
@@ -10,18 +10,18 @@ def draw_tile_outline(size):
     square(size)
 
 def draw_squiggle(size):
-    forward(size/4)
-    pencolor("black")
-    left(90)
-    quarter_arc_right(size/4)
-    quarter_arc_left(size/4)
-    quarter_arc_left(size/4)
-    quarter_arc_right(size/4)
-    left(90)
-    fly(size/4)
-    left(90)
-    fly(size)
-    left(90)
+    forward(size/25)
+    pencolor("pink")
+    left(135)
+    half_arc_right(size * 2)
+    half_arc_left(size * 2)
+    half_arc_left(size * 2)
+    half_arc_right(size * 2)
+    left(135)
+    fly(size/2)
+    left(135)
+    fly(size/2)
+    left(135)
 
 def fly(distance):
     "Moves without drawing."
@@ -31,14 +31,14 @@ def fly(distance):
 
 def square(size):
     "Draws a square of side length `size`"
-    for side in range(4):
+    for side in range(9):
         forward(size)
-        left(90)
+        left(135)
 
-def quarter_arc_right(radius):
+def half_arc_right(radius):
     "Draws a quarter of an arc, turning to the right."
-    circle(-radius, 90)
+    circle(-radius, 180)
 
-def quarter_arc_left(radius):
+def half_arc_left(radius):
     "Draws a quarter of an arc, turning to the left."
-    circle(radius, 90)
+    circle(radius, 180)
diff --git a/tile_grid.py b/tile_grid.py
index 72a0f43..816fcf3 100644
--- a/tile_grid.py
+++ b/tile_grid.py
@@ -10,7 +10,7 @@ from tile import fly
 def draw_tile_grid(width, height, tile_size, tile_function):
     """Draws a (width x height) grid, with tile_function drawn on each tile.
 
-    (Your explanation here.)
+    (it works by drawing one version of the expected shape and then returning to its orignal starting point but also then moving up one row to draw the orignal shape in one spot above the original)
     """
     for y in range(height):
         for x in range(width):