diff --git a/materials/part1_local_imports.pptx b/materials/part1_local_imports.pptx
index 14e0bb6..8c54fd0 100644
Binary files a/materials/part1_local_imports.pptx and b/materials/part1_local_imports.pptx differ
diff --git a/materials/part4_accessibility.pptx b/materials/part4_accessibility.pptx
index 7b53256..e1e95c5 100644
Binary files a/materials/part4_accessibility.pptx and b/materials/part4_accessibility.pptx differ
diff --git a/src/italianfood/drinks.py b/src/italianfood/drinks.py
index 4ec0700..0b6d39d 100644
--- a/src/italianfood/drinks.py
+++ b/src/italianfood/drinks.py
@@ -1,11 +1,11 @@
-class Schorle:
-    juice: str
+class Lemonade:
+    fruit: str
 
-    def __init__(self, juice):
-        self.name = f"{juice}schorle"
+    def __init__(self, fruit):
+        self.name = f"{fruit} lemonade"
 
 
-def make_apfelschorle():
-    print("Mixing a delicious Apfelschorle!\n...")
-    apfelschorle = Schorle(juice="apple")
-    return apfelschorle
+def make_lemonade():
+    print("Squeezing some zesty lemons for fresh lemonade!\n...")
+    lemonade = Lemonade(fruit="lemon")
+    return lemonade
diff --git a/src/italianfood/make_pizza_refactored.py b/src/italianfood/make_pizza_refactored.py
deleted file mode 100644
index 55a158e..0000000
--- a/src/italianfood/make_pizza_refactored.py
+++ /dev/null
@@ -1,77 +0,0 @@
-from italianfood.dough import PizzaDough
-from italianfood.ovens import bake_pizza
-
-STANDARD_FLOUR_WEIGHT = 180  # grams per pizza
-STANDARD_WATER_WEIGHT = 126  # grams per pizza
-STANDARD_SALT_WEIGHT = 2  # grams per pizza
-STANDARD_YEAST_WEIGHT = 1  # grams per pizza
-
-MARGARITA_TOPPINGS = ["tomato sauce", "mozzarella cheese", "fresh basil"]
-MUSHROOM_TOPPINGS = ["tomato sauce", "mozzarella cheese", "mushrooms"]
-
-
-class Pizza:
-    dough: PizzaDough
-    num_pizzas: int = 1
-    is_ready: bool = False
-
-    def __init__(self, dough, num_pizza_balls):
-        if num_pizza_balls < 1:
-            raise ValueError("Number of pizza balls must be at least 1.")
-        self.num_pizzas = num_pizza_balls
-        self.dough = dough
-        self.make_pizza_balls()
-
-    def make_pizza_balls(self):
-        self.weight_per_pizza_ball = self.dough.total_weight / self.num_pizzas
-        print(
-            f"Each Pizza will be made out of {self.weight_per_pizza_ball} g dough.\n..."
-        )
-        print("Now imagine expert pizza tossing skills!\n...")
-        return self
-
-    def add_toppings(self, toppings):
-        self.toppings = toppings
-        print(f"Adding {self.toppings} to pizza(s).\n...")
-        return self
-
-
-def make_margarita_pizza_more_readable(num_pizzas: int = 1):
-    dough = make_pizza_dough(num_pizzas)
-    baked_pizza = make_and_bake_pizza(dough, num_pizzas, MARGARITA_TOPPINGS)
-    return baked_pizza
-
-
-def make_pizza_dough(num_pizzas: int = 1):
-    dough = PizzaDough(
-        flour_weight=STANDARD_FLOUR_WEIGHT * num_pizzas,
-        water_weight=STANDARD_WATER_WEIGHT * num_pizzas,
-        salt_weight=STANDARD_SALT_WEIGHT * num_pizzas,
-        yeast_weight=STANDARD_YEAST_WEIGHT * num_pizzas,
-    )
-    return dough
-
-
-def make_and_bake_pizza(dough, num_pizzas, toppings):
-    pizza = Pizza(dough=dough, num_pizza_balls=num_pizzas)
-    pizza.add_toppings(toppings)
-    baked_pizza = bake_pizza(pizza)
-    return baked_pizza
-
-
-def make_pizza_reusable(num_pizzas, toppings):
-    dough = make_pizza_dough(num_pizzas)
-    baked_pizza = make_and_bake_pizza(dough, num_pizzas, toppings)
-    return baked_pizza
-
-
-def pizza_tasting_menu():
-    all_pizzas = []
-
-    margarita_pizza = make_pizza_reusable(num_pizzas=1, toppings=MARGARITA_TOPPINGS)
-    all_pizzas.append(margarita_pizza)
-
-    mushroom_pizza = make_pizza_reusable(num_pizzas=2, toppings=MUSHROOM_TOPPINGS)
-    all_pizzas.append(mushroom_pizza)
-
-    return all_pizzas