CS 111: Introduction to Computer Science

Fall 2025

Instructors:

Section 1 (online) - Tom Stephens (email: tstephen@cs.byu.edu)
- Office Hours: Schedule a time: https://calendly.com/byu-cs-tstephen/office-hours
Sections 3 (MW 8am) & 10 (TTh 2:00pm) - Michael Reynolds
- Please message me on Microsoft Teams (mtr26@byu.edu)
- Book time with me: https://bit.ly/mtr26
- Microsoft Teams with Recordings - https://bit.ly/byucs111teams
- Additional Section Slides, Etc - Google Drive
Section 4 (MW 12:30pm) - Nancy Fulda (email: nfulda@cs.byu.edu)
Section 5 (MW 2:00pm) - Steven Giles (email: Steven.Giles@byu.edu)
Section 6 (TTh 5:30pm) - Andrew Cluff (email: Andrew_Cluff@byu.edu)
Section 7 (MW 11:00am) - Steve Richardson (email: srichardson@byu.edu)
- Office Hours: TBD in 3372 TMCB, or by appointment (send me an email)
Section 8 (MW 9:30am) - Ethan Pedersen (email: ethanp55@student.byu.edu)

Due Dates may not reflect your Section
This schedule is approximate and dates may shift slightly as the semester goes on.
Additionally, it is schedule for the MW lectures and TTh lab sessions. If your lab or lecture section is a different day, some of the deadlines will be different.
Refer to Canvas for your exact dates.

Week's Lecture Topics & Slides	Date	Related Readings	Lab Links	Homework & Project Due Dates / Test Dates
Week 1
	Mon Sep 1	Labor Day
	Tue Sep 2
Instructor introductions: Dr. Tom Stephens Introduction Dr. Steve Richardson Introduction Dr. Nancy Fulda Introduction Prof. Michael Reynolds Introduction Prof. Andrew Cluff Introduction Prof. Ethan Peterson Introduction Prof. Steven Giles Introduction Course Introduction	Wed Sep 3	First day of classes.
	Thur Sep 4	Getting Started Python Environments	Lab 00: Getting Started & Python Setup Programming Environment Passoff
	Fri Sep 5	Things As They Really Are 2.0		Canvas Quiz: CS 111 or CS 110? Readiness Self-Assessment
Week 2
I/O, Conditionals, Booleans, & Libraries Functions, Names, Loops, & Lists	Mon Sep 8	Introduction Standard Types Operators Input Print Files Formatting Text
	Tue Sep 9		Lab 01: Basic Python, Booleans, Conditionals, & Console I/O
	Wed Sep 10	Defining Functions Built-in Functions More on Lists Loops	University Add/Drop Deadline	Homework 0: Pizza!
	Thur Sep 11		Lab 02: Functions, While loops, & File I/O
	Fri Sep 12
Week 3
Strings, Slicing, Ranges, & Comphrehensions Environments & Debugging	Mon Sep 15	Strings and Slicing Ranges List Comprehensions
	Tue Sep 16		Lab 03: For loops, Strings, & Comprehensions
	Wed Sep 17	Scopes Python Tutor VS Code Debugging PyCharm Debugging		Homework 1: College Admissions Algorithms
	Thur Sep 18		Lab 04: Debugging
	Fri Sep 19
Week 4
Debugging & Testing Testing, Tuples, Dictionaries, & Exceptions	Mon Sep 22	Pytest Doctests
	Tue Sep 23		Lab 05: Computational Thinking
	Wed Sep 24	Tuples Dictionaries Overview Dictionary Methods Exceptions		Project 0: Grade Calculator
	Thur Sep 25		Lab 06: Testing
	Fri Sep 26			Progress Check 1
Week 5
Images & Abstraction Command Line Arguments, Object Oriented Programming, & Classes	Mon Sep 29
	Tue Sep 30		Lab 07: Picture Puzzles & Filters
	Wed Oct 1	Command Line Arguments Explanation of Classes Classes Overview	Midterm 1 Study Guide General Studying Guide	Homework 2: Image Manipulation
	Thur Oct 2		Lab 08: Exceptions	Take Midterm 1
	Fri Oct 3			Take Midterm 1
Week 6
Inheritance & Dunder Functions Polymorphism, Random Numbers, & Modularity	Mon Oct 6	Modules Dunder Methods Inheritance	Midterm 1 Study Guide General Studying Guide
	Tue Oct 7		Lab 09: Command Line Arguments
	Wed Oct 8			Project 1: Image Processor
	Thur Oct 9		Lab 10: Classes
	Fri Oct 10			Free Coding Project Proposal Due
Week 7
Modular Design, Functional Programming, & Higher Order Functions Lambda Functions & Mutability	Mon Oct 13	Higher Order Functions
	Tue Oct 14		Lab 11: Starting the Grid class
	Wed Oct 15	Lambda Functions Mutability		Homework 3: The Grid Class
	Thur Oct 16		Lab 12: Functional Programming
	Fri Oct 17			Progress Check 2
Week 8
Mutable Functions Recursion	Mon Oct 20
	Tue Oct 21		Lab 13: Higher Order Functions
	Wed Oct 22	Intro To Recursion Khanacademy Recursion Python Tutor Comparing Iteration with Recursion		Homework 4: The Sand Class
	Thur Oct 23		Midterm Review Work on Project 2
	Fri Oct 24
Week 9
Recursion & Linked Lists Tree Recursion, Mergesort, & Trees	Mon Oct 27	Linked Lists
	Tue Oct 28		Lab 14: Recursion
	Wed Oct 29	Visualizing Mergesort Mergesort Intro to Trees	Midterm 2 Study Guide General Studying Guide	Project 2: Sand
	Thur Oct 30		Lab 15: Linked List	Take Midterm 2
	Fri Oct 31			Take Midterm 2
Week 10
Trees, Backtracking, & Efficiency Regular Expressions	Mon Nov 3	Big O Notation Big O Guide
	Tue Nov 4		Lab 16: Trees
	Wed Nov 5	RegExr Regex101 W3Schools Regex Regex Python Docs		Homework 5: Merge sort
	Thur Nov 6		Lab 17: Recursive Backtracking
	Fri Nov 7			Progress Check 3
Week 11
Intro to the WWW Requests & Beautiful Soup	Mon Nov 10	How the web works HTML
	Tue Nov 11		Lab 18: Regular Expressions
	Wed Nov 12	Requests Beautiful Soup Docs		Project 3: Maze Generation
	Thur Nov 13		Lab 19: HTML & Web Fundamentals
	Fri Nov 14
Week 12
Hyperlinks & Robots Data Scraping	Mon Nov 17	Urllib Robots.txt Files
	Tue Nov 18		Lab 20: Using Beautiful Soup
	Wed Nov 19		Midterm 3 Study Guide General Studying Guide
	Thur Nov 20		Lab 21: URLlib	Take Midterm 3
	Fri Nov 21			Free Coding Project Pass-off Starts Take Midterm 3
Week 13
Data Visualization	Mon Nov 24	Matplotlib Matplotlib Quick Start Docs	University Withdrawal Deadline
Data Visualization	Tue Nov 25		Lab 22: Web crawl Scavenger hunt
	Wed Nov 26	Thanksgiving Holiday
	Thur Nov 27
	Fri Nov 28
Week 14
Machine Learning Iterators & Generators	Mon Dec 1			Homework 6: Robots
	Tue Dec 2		Lab 23: Plotting
	Wed Dec 3	Iterators Generators More on Generators
	Thur Dec 4		Lab 24: Iterators & Generators
	Fri Dec 5			Progress Check 4
Week 15
Conclusion	Mon Dec 8		Final Exam Study Guide General Studying Guide	Project 4: Web Crawler
	Tue Dec 9		Final Review
	Wed Dec 10	Last day of classes. Deadline for all late assignments.		Free Coding Extra Credit
	Thur Dec 11	Exam Preparation Day
	Fri Dec 12	Final exam
	Sat Dec 13	Final exam
Week 16
	Mon Dec 15	Final exam
	Tue Dec 16
	Wed Dec 17
	Thur Dec 18	School's out - Go home for the Christmas!!