Due dates

Projects should be turned in by 11:59pm on the below due dates.

Lab Check-ins should be turned in by 11:59pm the day after the lab is assigned.

Links and schedule

	Lab	Project		Due Date
0	Getting your computer ready for CS151	None		Wednesday, September 3rd 2025
1	First Python program	What is a shape?		Tuesday, September 9th 2025
2	Using functions to control shapes	A shape collection		Tuesday, September 16th 2025
3	Mondrians	Scene Within Scenes		Tuesday, September 23rd 2025
4	Unique Turtles	Turtle Race		Tuesday, September 30th 2025
5	Graphics Objects	Meme Generator		Tuesday, October 7th 2025
6	Filtered Images	Image Manipulation		Tuesday, October 21st 2025
Lecture 19	File I/O
7	Classes	Fractals and trees		Tuesday, October 28th 2025
8	Inheritance	Mosaics		Tuesday, November 4th 2025
9	Event-based programming	Asteroids		Tuesday, November 11th 2025
10	Abstract Classes	Video game		Checkin: Tuesday, November 18th 2025 Final Submission: Tuesday, December 2nd 2025

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Policies

Lab TA

Daniel Lyu (clyu26@colby.edu)

Attendance

Attendance in lab, like lecture is required.

Evening TAs

Su 4-7pm Kelvin Owusu
Su 7-10pm Duilio Lucio
M 4-7pm Shin Wu
M 7-10pm Alexander Zhelonkin
Tu 4-7pm Ismaila Ahmed
Tu 7-10pm Andrew Lipton
W 4-7pm Rose Agyapong
W 7-10pm Mai Khanh Tran

Grading

Projects are graded on a scale of 0 to 30:

• Up to 1 points awarded for completing the project tasks (code and following good code comments/organization practices).
• Up to 5 points for completing the report.
• 1 additional point for submitting the project ontime.
• Up to 3 additional points for extending the projects with independent explorations.

Specific criteria by which each of these components (including Extensions) will be graded is provided in each project grading rubric on Google Classroom.

Late projects

• There is a 1 week grace period for turning in projects. For example, if a project is due this Tuesday, you may turn-in your project anytime until 11:59pm next Tuesday.
• Projects turned in during the grace period are capped at a maximum possible grade of 26/30 (extensions will not be graded). This is designed to help you get back on track — staying current on projects is more important for your grade and learning experience than investing the time to get a few extension points on one particular project and getting further behind.
• Projects will not be accepted after the grace period. This is also designed to help you stay on track in this class. With the weekly project schedule, it is difficult to catch up if you fall behind. Turning in what you have by the end of the grace period and staying up-to-date on projects is the best choice for your grade and learning experience.
• If the 1 week grace period is not enough and you are facing difficult circumstances, I would like to help you out as much as possible. In these cases, please reach out, open communication between us is of paramount importance.

Project tips

• 30 minute rule: If you have been stuck on a problem, such as a bug, for more than 30 minutes and have made no progress, despite your best efforts, please get help. Email one of us, ask a TA, or consult a peer. If you don't get an answer immediately, do something else for a while. Please do not waste your time on one problem.
• We are always happy to help you with any of your code for your projects. However, the earlier you come to us with questions, the happier we'll be to help you (we usually respond to a last-minute call for major help with the question "Why didn't you start earlier?").
• Don't gloss over errors in your code. That is, if you pretend there are no errors in your code when you know there are some there, we will take off more points than if you point out the errors that you were unable to fix.

Extension
misconceptions

You need to do extensions on every project. If you complete the specified parts of the assignment properly, and produce a high-quality writeup, it's worth up to an A- grade. It is important to note that it is very possible to earn these grades or higher in the course and not do extensions every week.

More extensions are better. As the project pages state, you generally receive a higher extension grade if you complete a few "deeper" extensions that explore areas that interest you and give you the opportunity to learn something new. Just because you claim to do 10 extensions does not mean they should be worth more than 1-2 creative, well thought out ones. In fact, extensions are graded according to the rubric criteria and nowhere do we count or itemize points for quantity completed.

Learning Goals

The learning goals for the lecture and lab are the same — both are meant to work together to accomplish the goals for the course as a whole. They are:

1. Students can read a simple program and correctly identify its behavior
2. Students can convert a problem statement into a working program that solves the problem.
3. Students understand abstraction and can break down a program into appropriate procedural and object-oriented components
4. Students can generate an approximate model of computer memory and describe how an algorithm affects its contents.
5. Students can communicate the result of their work and describe an algorithm.

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© 2021 Hannen Wolfe and Oliver Layton