diff --git a/app/__init__.py b/app/__init__.py
index 3c581ceeb..de06dac09 100644
--- a/app/__init__.py
+++ b/app/__init__.py
@@ -1,6 +1,8 @@
 from flask import Flask
 from .db import db, migrate
 from .models import task, goal
+from .routes.task_routes import tasks_bp
+from .routes.goal_routes import goals_bp
 import os
 
 def create_app(config=None):
@@ -18,5 +20,7 @@ def create_app(config=None):
     migrate.init_app(app, db)
 
     # Register Blueprints here
+    app.register_blueprint(tasks_bp)
+    app.register_blueprint(goals_bp)
 
     return app
diff --git a/app/models/goal.py b/app/models/goal.py
index 44282656b..2a43abf39 100644
--- a/app/models/goal.py
+++ b/app/models/goal.py
@@ -1,5 +1,23 @@
-from sqlalchemy.orm import Mapped, mapped_column
+from sqlalchemy.orm import Mapped, mapped_column, relationship
 from ..db import db
+from typing import Dict, Any, List
 
 class Goal(db.Model):
     id: Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
+    title: Mapped[str] = mapped_column(nullable=False)
+    
+    tasks = relationship("Task", back_populates="goal", cascade="all, delete-orphan")
+
+    @classmethod
+    def from_dict(cls, goal_data: Dict[str, Any]) -> "Goal":
+        """Create a Goal instance from a dictionary."""
+        return cls(
+            title=goal_data["title"]
+        )
+
+    def to_dict(self) -> Dict[str, Any]:
+        """Convert the Goal instance to a dictionary."""
+        return {
+            "id": self.id,
+            "title": self.title
+        }
diff --git a/app/models/task.py b/app/models/task.py
index 5d99666a4..f8edfc383 100644
--- a/app/models/task.py
+++ b/app/models/task.py
@@ -1,5 +1,36 @@
-from sqlalchemy.orm import Mapped, mapped_column
+from datetime import datetime
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+from sqlalchemy import Text, DateTime, ForeignKey
 from ..db import db
 
+
 class Task(db.Model):
     id: Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
+    title: Mapped[str]
+    description: Mapped[str] = mapped_column(Text)
+    completed_at: Mapped[datetime] = mapped_column(DateTime, nullable=True)
+
+    goal_id = mapped_column(ForeignKey("goal.id"), nullable=True)
+    goal = relationship("Goal", back_populates="tasks")
+
+    def to_dict(self):
+        task_dict = {
+            "id": self.id,
+            "title": self.title,
+            "description": self.description,
+            "is_complete": self.completed_at is not None
+        }
+
+        # add goal_id if the task belongs to a goal
+        if self.goal_id:
+            task_dict["goal_id"] = self.goal_id
+
+        return task_dict
+
+    @classmethod
+    def from_dict(cls, task_data):
+        return cls(
+            title=task_data["title"],
+            description=task_data["description"],
+            completed_at=task_data.get("completed_at")
+        )
diff --git a/app/routes/goal_routes.py b/app/routes/goal_routes.py
index 3aae38d49..b2ef16a10 100644
--- a/app/routes/goal_routes.py
+++ b/app/routes/goal_routes.py
@@ -1 +1,139 @@
-from flask import Blueprint
\ No newline at end of file
+from flask import Blueprint, request, make_response, abort, Response
+from ..db import db
+from app.models.goal import Goal
+from app.models.task import Task
+
+goals_bp = Blueprint("goals_bp", __name__, url_prefix="/goals")
+
+def validate_task(task_id):
+    try:
+        task_id = int(task_id)
+    except ValueError:
+        response = {"message": "Invalid task ID"}
+        abort(make_response(response, 400))
+
+    query = db.select(Task).where(Task.id == task_id)
+    task = db.session.scalar(query)
+
+    if not task:
+        response = {"message": "Task not found"}
+        abort(make_response(response, 404))
+
+    return task
+
+
+def validate_goal(goal_id):
+    try:
+        goal_id = int(goal_id)
+    except ValueError:
+        response = {"message": "Invalid goal ID"}
+        abort(make_response(response, 400))
+
+    query = db.select(Goal).where(Goal.id == goal_id)
+    goal = db.session.scalar(query)
+
+    if not goal:
+        response = {"message": "Goal not found"}
+        abort(make_response(response, 404))
+
+    return goal
+
+
+@goals_bp.post("")
+def create_goal():
+    """Create a new goal"""
+    request_body = request.get_json()
+
+    # Required fields
+    if "title" not in request_body:
+        return {"details": "Invalid data"}, 400
+
+    try:
+        new_goal = Goal.from_dict(request_body)
+    except KeyError:
+        return {"details": "Invalid data"}, 400
+
+    db.session.add(new_goal)
+    db.session.commit()
+
+    return {"goal": new_goal.to_dict()}, 201
+
+
+@goals_bp.get("")
+def get_all_goals():
+    """Get all goals"""
+    query = db.select(Goal)
+    goals = db.session.scalars(query)
+
+    return [goal.to_dict() for goal in goals]
+
+
+@goals_bp.get("/<goal_id>")
+def get_goal(goal_id):
+    """Get a specific goal by ID"""
+    goal = validate_goal(goal_id)
+
+    return {"goal": goal.to_dict()}
+
+
+@goals_bp.put("/<goal_id>")
+def update_goal(goal_id):
+    """Update a goal by ID"""
+    goal = validate_goal(goal_id)
+    request_body = request.get_json()
+
+    if "title" in request_body:
+        goal.title = request_body["title"]
+
+    db.session.commit()
+
+    return Response(status=204, mimetype="application/json")
+
+
+@goals_bp.delete("/<goal_id>")
+def delete_goal(goal_id):
+    """Delete a goal by ID"""
+    goal = validate_goal(goal_id)
+
+    db.session.delete(goal)
+    db.session.commit()
+
+    return Response(status=204, mimetype="application/json")
+
+
+@goals_bp.get("/<goal_id>/tasks")
+def get_tasks_for_goal(goal_id):
+    """Get all tasks associated with a specific goal"""
+    goal = validate_goal(goal_id)
+
+    response = {
+        "id": goal.id,
+        "title": goal.title,
+        "tasks": [task.to_dict() for task in goal.tasks]
+    }
+
+    return response
+
+
+@goals_bp.post("/<goal_id>/tasks")
+def add_tasks_to_goal(goal_id):
+    """Associate multiple tasks with a goal"""
+    goal = validate_goal(goal_id)
+    request_body = request.get_json()
+
+    if "task_ids" not in request_body:
+        return {"message": "Missing task_ids field"}, 400
+
+    goal.tasks = []
+
+    # Add each task from the task_ids list
+    for task_id in request_body["task_ids"]:
+        task = validate_task(task_id)
+        goal.tasks.append(task)
+
+    db.session.commit()
+
+    return {
+        "id": goal.id,
+        "task_ids": [task.id for task in goal.tasks]
+    }
\ No newline at end of file
diff --git a/app/routes/task_routes.py b/app/routes/task_routes.py
index 3aae38d49..825e908a6 100644
--- a/app/routes/task_routes.py
+++ b/app/routes/task_routes.py
@@ -1 +1,160 @@
-from flask import Blueprint
\ No newline at end of file
+from flask import Blueprint, request, make_response, abort, Response
+from ..db import db
+from app.models.task import Task
+from datetime import datetime
+import requests
+import os
+
+tasks_bp = Blueprint("tasks_bp", __name__, url_prefix="/tasks")
+
+# Slack API
+SLACK_API_TOKEN = os.environ.get('SLACK_API_TOKEN')
+SLACK_CHANNEL = os.environ.get('SLACK_CHANNEL', 'task-notifications')
+
+def send_slack_notification(message):
+    if not SLACK_API_TOKEN:
+        print("Warning: SLACK_API_TOKEN not configured.")
+        return False
+
+    url = "https://slack.com/api/chat.postMessage"
+    headers = {
+        "Authorization": f"Bearer {SLACK_API_TOKEN}",
+        "Content-Type": "application/json"
+    }
+    payload = {
+        "channel": SLACK_CHANNEL,
+        "text": message
+    }
+
+    try:
+        response = requests.post(url, json=payload, headers=headers)
+        data = response.json()
+
+        if data.get("ok"):
+            return True
+        else:
+            print(f"Slack API error: {data.get('error')}")
+            return False
+    except Exception as e:
+        print(f"Error sending Slack notification: {str(e)}")
+        return False
+
+
+def validate_task(task_id):
+    """
+    Validates that a task with the given ID exists.
+    Returns the task if it exists, otherwise aborts with 404.
+    """
+    try:
+        task_id = int(task_id)
+    except ValueError:
+        response = {"error": "Invalid task ID"}
+        abort(make_response(response, 400))
+
+    query = db.select(Task).where(Task.id == task_id)
+    task = db.session.scalar(query)
+
+    if not task:
+        response = {"error": "Task not found"}
+        abort(make_response(response, 404))
+
+    return task
+
+
+@tasks_bp.post("")
+def create_task():
+    """Create a new task"""
+    request_body = request.get_json()
+    
+    # Validate required fields
+    if "title" not in request_body or "description" not in request_body:
+        return {"details": "Invalid data"}, 400
+    
+    try:
+        new_task = Task.from_dict(request_body)
+    except KeyError:
+        return {"details": "Invalid data"}, 400
+
+    db.session.add(new_task)
+    db.session.commit()
+
+    return {"task": new_task.to_dict()}, 201
+
+
+@tasks_bp.get("")
+def get_all_tasks():
+    """Get all tasks"""
+    sort_param = request.args.get("sort")
+
+    query = db.select(Task)
+
+    # sort by title
+    if sort_param == "asc":
+        query = query.order_by(Task.title.asc())
+    elif sort_param == "desc":
+        query = query.order_by(Task.title.desc())
+
+    tasks = db.session.scalars(query)
+
+    return [task.to_dict() for task in tasks]
+
+
+@tasks_bp.get("/<task_id>")
+def get_task(task_id):
+    """Get a specific task by ID"""
+    task = validate_task(task_id)
+    
+    return {"task": task.to_dict()}
+
+
+@tasks_bp.put("/<task_id>")
+def update_task(task_id):
+    """Update a task by ID"""
+    task = validate_task(task_id)
+    request_body = request.get_json()
+    
+    if "title" in request_body:
+        task.title = request_body["title"]
+    if "description" in request_body:
+        task.description = request_body["description"]
+    
+    db.session.commit()
+    
+    return Response(status=204, mimetype="application/json")
+
+
+@tasks_bp.delete("/<task_id>")
+def delete_task(task_id):
+    """Delete a task by ID"""
+    task = validate_task(task_id)
+
+    db.session.delete(task)
+    db.session.commit()
+
+    return Response(status=204, mimetype="application/json")
+
+
+@tasks_bp.patch("/<task_id>/mark_complete")
+def mark_task_complete(task_id):
+    """Mark a task as complete"""
+    task = validate_task(task_id)
+
+    task.completed_at = datetime.now()
+    db.session.commit()
+
+    # Send Slack notification when a task is marked complete
+    notification_message = f"Someone just completed the task {task.title}"
+    send_slack_notification(notification_message)
+
+    return Response(status=204, mimetype="application/json")
+
+
+@tasks_bp.patch("/<task_id>/mark_incomplete")
+def mark_task_incomplete(task_id):
+    """Mark a task as incomplete"""
+    task = validate_task(task_id)
+
+    task.completed_at = None
+    db.session.commit()
+
+    return Response(status=204, mimetype="application/json")
\ No newline at end of file
diff --git a/migrations/README b/migrations/README
new file mode 100644
index 000000000..0e0484415
--- /dev/null
+++ b/migrations/README
@@ -0,0 +1 @@
+Single-database configuration for Flask.
diff --git a/migrations/alembic.ini b/migrations/alembic.ini
new file mode 100644
index 000000000..ec9d45c26
--- /dev/null
+++ b/migrations/alembic.ini
@@ -0,0 +1,50 @@
+# A generic, single database configuration.
+
+[alembic]
+# template used to generate migration files
+# file_template = %%(rev)s_%%(slug)s
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+
+# Logging configuration
+[loggers]
+keys = root,sqlalchemy,alembic,flask_migrate
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[logger_flask_migrate]
+level = INFO
+handlers =
+qualname = flask_migrate
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S
diff --git a/migrations/env.py b/migrations/env.py
new file mode 100644
index 000000000..4c9709271
--- /dev/null
+++ b/migrations/env.py
@@ -0,0 +1,113 @@
+import logging
+from logging.config import fileConfig
+
+from flask import current_app
+
+from alembic import context
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# Interpret the config file for Python logging.
+# This line sets up loggers basically.
+fileConfig(config.config_file_name)
+logger = logging.getLogger('alembic.env')
+
+
+def get_engine():
+    try:
+        # this works with Flask-SQLAlchemy<3 and Alchemical
+        return current_app.extensions['migrate'].db.get_engine()
+    except (TypeError, AttributeError):
+        # this works with Flask-SQLAlchemy>=3
+        return current_app.extensions['migrate'].db.engine
+
+
+def get_engine_url():
+    try:
+        return get_engine().url.render_as_string(hide_password=False).replace(
+            '%', '%%')
+    except AttributeError:
+        return str(get_engine().url).replace('%', '%%')
+
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+config.set_main_option('sqlalchemy.url', get_engine_url())
+target_db = current_app.extensions['migrate'].db
+
+# other values from the config, defined by the needs of env.py,
+# can be acquired:
+# my_important_option = config.get_main_option("my_important_option")
+# ... etc.
+
+
+def get_metadata():
+    if hasattr(target_db, 'metadatas'):
+        return target_db.metadatas[None]
+    return target_db.metadata
+
+
+def run_migrations_offline():
+    """Run migrations in 'offline' mode.
+
+    This configures the context with just a URL
+    and not an Engine, though an Engine is acceptable
+    here as well.  By skipping the Engine creation
+    we don't even need a DBAPI to be available.
+
+    Calls to context.execute() here emit the given string to the
+    script output.
+
+    """
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url, target_metadata=get_metadata(), literal_binds=True
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online():
+    """Run migrations in 'online' mode.
+
+    In this scenario we need to create an Engine
+    and associate a connection with the context.
+
+    """
+
+    # this callback is used to prevent an auto-migration from being generated
+    # when there are no changes to the schema
+    # reference: http://alembic.zzzcomputing.com/en/latest/cookbook.html
+    def process_revision_directives(context, revision, directives):
+        if getattr(config.cmd_opts, 'autogenerate', False):
+            script = directives[0]
+            if script.upgrade_ops.is_empty():
+                directives[:] = []
+                logger.info('No changes in schema detected.')
+
+    conf_args = current_app.extensions['migrate'].configure_args
+    if conf_args.get("process_revision_directives") is None:
+        conf_args["process_revision_directives"] = process_revision_directives
+
+    connectable = get_engine()
+
+    with connectable.connect() as connection:
+        context.configure(
+            connection=connection,
+            target_metadata=get_metadata(),
+            **conf_args
+        )
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()
diff --git a/migrations/script.py.mako b/migrations/script.py.mako
new file mode 100644
index 000000000..2c0156303
--- /dev/null
+++ b/migrations/script.py.mako
@@ -0,0 +1,24 @@
+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision = ${repr(up_revision)}
+down_revision = ${repr(down_revision)}
+branch_labels = ${repr(branch_labels)}
+depends_on = ${repr(depends_on)}
+
+
+def upgrade():
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade():
+    ${downgrades if downgrades else "pass"}
diff --git a/migrations/versions/4109d3270061_add_goal_model_and_relationship_to_tasks.py b/migrations/versions/4109d3270061_add_goal_model_and_relationship_to_tasks.py
new file mode 100644
index 000000000..a1fd87980
--- /dev/null
+++ b/migrations/versions/4109d3270061_add_goal_model_and_relationship_to_tasks.py
@@ -0,0 +1,40 @@
+"""add goal model and relationship to tasks
+
+Revision ID: 4109d3270061
+Revises: a889c0234cc0
+Create Date: 2025-05-10 22:20:36.857828
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '4109d3270061'
+down_revision = 'a889c0234cc0'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('goal', schema=None) as batch_op:
+        batch_op.add_column(sa.Column('title', sa.String(), nullable=False))
+
+    with op.batch_alter_table('task', schema=None) as batch_op:
+        batch_op.add_column(sa.Column('goal_id', sa.Integer(), nullable=True))
+        batch_op.create_foreign_key(None, 'goal', ['goal_id'], ['id'])
+
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('task', schema=None) as batch_op:
+        batch_op.drop_constraint(None, type_='foreignkey')
+        batch_op.drop_column('goal_id')
+
+    with op.batch_alter_table('goal', schema=None) as batch_op:
+        batch_op.drop_column('title')
+
+    # ### end Alembic commands ###
diff --git a/migrations/versions/a889c0234cc0_add_task_model.py b/migrations/versions/a889c0234cc0_add_task_model.py
new file mode 100644
index 000000000..510a61ae0
--- /dev/null
+++ b/migrations/versions/a889c0234cc0_add_task_model.py
@@ -0,0 +1,39 @@
+"""Add Task model
+
+Revision ID: a889c0234cc0
+Revises: 
+Create Date: 2025-05-08 21:02:49.483981
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'a889c0234cc0'
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('goal',
+    sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_table('task',
+    sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+    sa.Column('title', sa.String(), nullable=False),
+    sa.Column('description', sa.Text(), nullable=False),
+    sa.Column('completed_at', sa.DateTime(), nullable=True),
+    sa.PrimaryKeyConstraint('id')
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table('task')
+    op.drop_table('goal')
+    # ### end Alembic commands ###
diff --git a/tests/test_wave_01.py b/tests/test_wave_01.py
index 55475db79..71489090a 100644
--- a/tests/test_wave_01.py
+++ b/tests/test_wave_01.py
@@ -3,7 +3,7 @@
 import pytest
 
 
-@pytest.mark.skip(reason="No way to test this feature yet")
+# @pytest.mark.skip(reason="No way to test this feature yet")
 def test_get_tasks_no_saved_tasks(client):
     # Act
     response = client.get("/tasks")
@@ -14,7 +14,7 @@ def test_get_tasks_no_saved_tasks(client):
     assert response_body == []
 
 
-@pytest.mark.skip(reason="No way to test this feature yet")
+# @pytest.mark.skip(reason="No way to test this feature yet")
 def test_get_tasks_one_saved_tasks(client, one_task):
     # Act
     response = client.get("/tasks")
@@ -33,7 +33,7 @@ def test_get_tasks_one_saved_tasks(client, one_task):
     ]
 
 
-@pytest.mark.skip(reason="No way to test this feature yet")
+# @pytest.mark.skip(reason="No way to test this feature yet")
 def test_get_task(client, one_task):
     # Act
     response = client.get("/tasks/1")
@@ -52,7 +52,7 @@ def test_get_task(client, one_task):
     }
 
 
-@pytest.mark.skip(reason="No way to test this feature yet")
+# @pytest.mark.skip(reason="No way to test this feature yet")
 def test_get_task_not_found(client):
     # Act
     response = client.get("/tasks/1")
@@ -60,14 +60,13 @@ def test_get_task_not_found(client):
 
     # Assert
     assert response.status_code == 404
-
-    raise Exception("Complete test with assertion about response body")
-    # *****************************************************************
-    # **Complete test with assertion about response body***************
-    # *****************************************************************
+    assert "error" in response_body
+    assert response_body == {
+        "error": "Task not found"
+    }
 
 
-@pytest.mark.skip(reason="No way to test this feature yet")
+# @pytest.mark.skip(reason="No way to test this feature yet")
 def test_create_task(client):
     # Act
     response = client.post("/tasks", json={
@@ -97,7 +96,7 @@ def test_create_task(client):
     assert new_task.completed_at == None
 
 
-@pytest.mark.skip(reason="No way to test this feature yet")
+# @pytest.mark.skip(reason="No way to test this feature yet")
 def test_update_task(client, one_task):
     # Act
     response = client.put("/tasks/1", json={
@@ -117,7 +116,7 @@ def test_update_task(client, one_task):
 
 
 
-@pytest.mark.skip(reason="No way to test this feature yet")
+# @pytest.mark.skip(reason="No way to test this feature yet")
 def test_update_task_not_found(client):
     # Act
     response = client.put("/tasks/1", json={
@@ -128,14 +127,13 @@ def test_update_task_not_found(client):
 
     # Assert
     assert response.status_code == 404
-
-    raise Exception("Complete test with assertion about response body")
-    # *****************************************************************
-    # **Complete test with assertion about response body***************
-    # *****************************************************************
+    assert "error" in response_body
+    assert response_body == {
+        "error": "Task not found"
+    }
 
 
-@pytest.mark.skip(reason="No way to test this feature yet")
+# @pytest.mark.skip(reason="No way to test this feature yet")
 def test_delete_task(client, one_task):
     # Act
     response = client.delete("/tasks/1")
@@ -146,7 +144,7 @@ def test_delete_task(client, one_task):
     query = db.select(Task).where(Task.id == 1)
     assert db.session.scalar(query) == None
 
-@pytest.mark.skip(reason="No way to test this feature yet")
+# @pytest.mark.skip(reason="No way to test this feature yet")
 def test_delete_task_not_found(client):
     # Act
     response = client.delete("/tasks/1")
@@ -154,16 +152,15 @@ def test_delete_task_not_found(client):
 
     # Assert
     assert response.status_code == 404
-
-    raise Exception("Complete test with assertion about response body")
-    # *****************************************************************
-    # **Complete test with assertion about response body***************
-    # *****************************************************************
+    assert "error" in response_body
+    assert response_body == {
+        "error": "Task not found"
+    }
 
     assert db.session.scalars(db.select(Task)).all() == []
 
 
-@pytest.mark.skip(reason="No way to test this feature yet")
+# @pytest.mark.skip(reason="No way to test this feature yet")
 def test_create_task_must_contain_title(client):
     # Act
     response = client.post("/tasks", json={
@@ -180,7 +177,7 @@ def test_create_task_must_contain_title(client):
     assert db.session.scalars(db.select(Task)).all() == []
 
 
-@pytest.mark.skip(reason="No way to test this feature yet")
+# @pytest.mark.skip(reason="No way to test this feature yet")
 def test_create_task_must_contain_description(client):
     # Act
     response = client.post("/tasks", json={
diff --git a/tests/test_wave_02.py b/tests/test_wave_02.py
index a087e0909..651e3aebd 100644
--- a/tests/test_wave_02.py
+++ b/tests/test_wave_02.py
@@ -1,7 +1,7 @@
 import pytest
 
 
-@pytest.mark.skip(reason="No way to test this feature yet")
+# @pytest.mark.skip(reason="No way to test this feature yet")
 def test_get_tasks_sorted_asc(client, three_tasks):
     # Act
     response = client.get("/tasks?sort=asc")
@@ -29,7 +29,7 @@ def test_get_tasks_sorted_asc(client, three_tasks):
     ]
 
 
-@pytest.mark.skip(reason="No way to test this feature yet")
+# @pytest.mark.skip(reason="No way to test this feature yet")
 def test_get_tasks_sorted_desc(client, three_tasks):
     # Act
     response = client.get("/tasks?sort=desc")
diff --git a/tests/test_wave_03.py b/tests/test_wave_03.py
index d7d441695..db0068cde 100644
--- a/tests/test_wave_03.py
+++ b/tests/test_wave_03.py
@@ -6,7 +6,7 @@
 import pytest
 
 
-@pytest.mark.skip(reason="No way to test this feature yet")
+# @pytest.mark.skip(reason="No way to test this feature yet")
 def test_mark_complete_on_incomplete_task(client, one_task):
     # Arrange
     """
@@ -34,7 +34,7 @@ def test_mark_complete_on_incomplete_task(client, one_task):
     assert db.session.scalar(query).completed_at
 
 
-@pytest.mark.skip(reason="No way to test this feature yet")
+# @pytest.mark.skip(reason="No way to test this feature yet")
 def test_mark_incomplete_on_complete_task(client, completed_task):
     # Act
     response = client.patch("/tasks/1/mark_incomplete")
@@ -46,7 +46,7 @@ def test_mark_incomplete_on_complete_task(client, completed_task):
     assert db.session.scalar(query).completed_at == None
 
 
-@pytest.mark.skip(reason="No way to test this feature yet")
+# @pytest.mark.skip(reason="No way to test this feature yet")
 def test_mark_complete_on_completed_task(client, completed_task):
     # Arrange
     """
@@ -74,7 +74,7 @@ def test_mark_complete_on_completed_task(client, completed_task):
     query = db.select(Task).where(Task.id == 1)
     assert db.session.scalar(query).completed_at
 
-@pytest.mark.skip(reason="No way to test this feature yet")
+# @pytest.mark.skip(reason="No way to test this feature yet")
 def test_mark_incomplete_on_incomplete_task(client, one_task):
     # Act
     response = client.patch("/tasks/1/mark_incomplete")
@@ -86,7 +86,7 @@ def test_mark_incomplete_on_incomplete_task(client, one_task):
     assert db.session.scalar(query).completed_at == None
 
 
-@pytest.mark.skip(reason="No way to test this feature yet")
+# @pytest.mark.skip(reason="No way to test this feature yet")
 def test_mark_complete_missing_task(client):
     # Act
     response = client.patch("/tasks/1/mark_complete")
@@ -94,14 +94,10 @@ def test_mark_complete_missing_task(client):
 
     # Assert
     assert response.status_code == 404
+    assert response_body["error"] == "Task not found"
 
-    raise Exception("Complete test with assertion about response body")
-    # *****************************************************************
-    # **Complete test with assertion about response body***************
-    # *****************************************************************
 
-
-@pytest.mark.skip(reason="No way to test this feature yet")
+# @pytest.mark.skip(reason="No way to test this feature yet")
 def test_mark_incomplete_missing_task(client):
     # Act
     response = client.patch("/tasks/1/mark_incomplete")
@@ -109,8 +105,4 @@ def test_mark_incomplete_missing_task(client):
 
     # Assert
     assert response.status_code == 404
-
-    raise Exception("Complete test with assertion about response body")
-    # *****************************************************************
-    # **Complete test with assertion about response body***************
-    # *****************************************************************
+    assert response_body["error"] == "Task not found"
diff --git a/tests/test_wave_05.py b/tests/test_wave_05.py
index 222d10cf0..0edd7fb66 100644
--- a/tests/test_wave_05.py
+++ b/tests/test_wave_05.py
@@ -1,7 +1,7 @@
 import pytest
 
 
-@pytest.mark.skip(reason="No way to test this feature yet")
+# @pytest.mark.skip(reason="No way to test this feature yet")
 def test_get_goals_no_saved_goals(client):
     # Act
     response = client.get("/goals")
@@ -12,7 +12,7 @@ def test_get_goals_no_saved_goals(client):
     assert response_body == []
 
 
-@pytest.mark.skip(reason="No way to test this feature yet")
+# @pytest.mark.skip(reason="No way to test this feature yet")
 def test_get_goals_one_saved_goal(client, one_goal):
     # Act
     response = client.get("/goals")
@@ -29,7 +29,7 @@ def test_get_goals_one_saved_goal(client, one_goal):
     ]
 
 
-@pytest.mark.skip(reason="No way to test this feature yet")
+# @pytest.mark.skip(reason="No way to test this feature yet")
 def test_get_goal(client, one_goal):
     # Act
     response = client.get("/goals/1")
@@ -45,23 +45,19 @@ def test_get_goal(client, one_goal):
         }
     }
 
-
-@pytest.mark.skip(reason="test to be completed by student")
 def test_get_goal_not_found(client):
-    pass
     # Act
     response = client.get("/goals/1")
     response_body = response.get_json()
 
-    raise Exception("Complete test")
     # Assert
     # ---- Complete Test ----
-    # assertion 1 goes here
-    # assertion 2 goes here
+    assert response.status_code == 404
+    assert "message" in response_body
     # ---- Complete Test ----
 
 
-@pytest.mark.skip(reason="No way to test this feature yet")
+# @pytest.mark.skip(reason="No way to test this feature yet")
 def test_create_goal(client):
     # Act
     response = client.post("/goals", json={
@@ -80,34 +76,39 @@ def test_create_goal(client):
     }
 
 
-@pytest.mark.skip(reason="test to be completed by student")
 def test_update_goal(client, one_goal):
-    raise Exception("Complete test")
     # Act
-    # ---- Complete Act Here ----
+    response = client.put("/goals/1", json={
+        "title": "Updated Goal Title"
+    })
 
     # Assert
     # ---- Complete Assertions Here ----
-    # assertion 1 goes here
-    # assertion 2 goes here
-    # assertion 3 goes here
+    assert response.status_code == 204
+    assert response.mimetype == "application/json"
+
+    get_response = client.get("/goals/1")
+    response_body = get_response.get_json()
+    assert response_body["goal"]["title"] == "Updated Goal Title"
     # ---- Complete Assertions Here ----
 
 
-@pytest.mark.skip(reason="test to be completed by student")
+# @pytest.mark.skip(reason="test to be completed by student")
 def test_update_goal_not_found(client):
-    raise Exception("Complete test")
     # Act
-    # ---- Complete Act Here ----
+    response = client.put("/goals/1", json={
+        "title": "Updated Goal Title"
+    })
+    response_body = response.get_json()
 
     # Assert
     # ---- Complete Assertions Here ----
-    # assertion 1 goes here
-    # assertion 2 goes here
+    assert response.status_code == 404
+    assert "message" in response_body
     # ---- Complete Assertions Here ----
 
 
-@pytest.mark.skip(reason="No way to test this feature yet")
+# @pytest.mark.skip(reason="No way to test this feature yet")
 def test_delete_goal(client, one_goal):
     # Act
     response = client.delete("/goals/1")
@@ -122,27 +123,22 @@ def test_delete_goal(client, one_goal):
     response_body = response.get_json()
     assert "message" in response_body
 
-    raise Exception("Complete test with assertion about response body")
-    # *****************************************************************
-    # **Complete test with assertion about response body***************
-    # *****************************************************************
+    assert "Goal not found" in response_body["message"] or "not found" in response_body["message"]
 
 
-@pytest.mark.skip(reason="test to be completed by student")
 def test_delete_goal_not_found(client):
-    raise Exception("Complete test")
-
     # Act
-    # ---- Complete Act Here ----
+    response = client.delete("/goals/1")
+    response_body = response.get_json()
 
     # Assert
     # ---- Complete Assertions Here ----
-    # assertion 1 goes here
-    # assertion 2 goes here
+    assert response.status_code == 404
+    assert "message" in response_body
     # ---- Complete Assertions Here ----
 
 
-@pytest.mark.skip(reason="No way to test this feature yet")
+# @pytest.mark.skip(reason="No way to test this feature yet")
 def test_create_goal_missing_title(client):
     # Act
     response = client.post("/goals", json={})
diff --git a/tests/test_wave_06.py b/tests/test_wave_06.py
index 0317f835a..c28d0d3a6 100644
--- a/tests/test_wave_06.py
+++ b/tests/test_wave_06.py
@@ -3,7 +3,7 @@
 import pytest
 
 
-@pytest.mark.skip(reason="No way to test this feature yet")
+# @pytest.mark.skip(reason="No way to test this feature yet")
 def test_post_task_ids_to_goal(client, one_goal, three_tasks):
     # Act
     response = client.post("/goals/1/tasks", json={
@@ -25,7 +25,7 @@ def test_post_task_ids_to_goal(client, one_goal, three_tasks):
     assert len(db.session.scalar(query).tasks) == 3
 
 
-@pytest.mark.skip(reason="No way to test this feature yet")
+# @pytest.mark.skip(reason="No way to test this feature yet")
 def test_post_task_ids_to_goal_already_with_goals(client, one_task_belongs_to_one_goal, three_tasks):
     # Act
     response = client.post("/goals/1/tasks", json={
@@ -45,7 +45,7 @@ def test_post_task_ids_to_goal_already_with_goals(client, one_task_belongs_to_on
     assert len(db.session.scalar(query).tasks) == 2
 
 
-@pytest.mark.skip(reason="No way to test this feature yet")
+# @pytest.mark.skip(reason="No way to test this feature yet")
 def test_get_tasks_for_specific_goal_no_goal(client):
     # Act
     response = client.get("/goals/1/tasks")
@@ -53,14 +53,10 @@ def test_get_tasks_for_specific_goal_no_goal(client):
 
     # Assert
     assert response.status_code == 404
+    assert "message" in response_body
+    assert "not found" in response_body["message"].lower() or "goal not found" in response_body["message"].lower()
 
-    raise Exception("Complete test with assertion about response body")
-    # *****************************************************************
-    # **Complete test with assertion about response body***************
-    # *****************************************************************
-
-
-@pytest.mark.skip(reason="No way to test this feature yet")
+# @pytest.mark.skip(reason="No way to test this feature yet")
 def test_get_tasks_for_specific_goal_no_tasks(client, one_goal):
     # Act
     response = client.get("/goals/1/tasks")
@@ -77,7 +73,7 @@ def test_get_tasks_for_specific_goal_no_tasks(client, one_goal):
     }
 
 
-@pytest.mark.skip(reason="No way to test this feature yet")
+# @pytest.mark.skip(reason="No way to test this feature yet")
 def test_get_tasks_for_specific_goal(client, one_task_belongs_to_one_goal):
     # Act
     response = client.get("/goals/1/tasks")
@@ -102,7 +98,7 @@ def test_get_tasks_for_specific_goal(client, one_task_belongs_to_one_goal):
     }
 
 
-@pytest.mark.skip(reason="No way to test this feature yet")
+# @pytest.mark.skip(reason="No way to test this feature yet")
 def test_get_task_includes_goal_id(client, one_task_belongs_to_one_goal):
     response = client.get("/tasks/1")
     response_body = response.get_json()