Pair Programming

Pair programming and academic integrity (“the rules”)

• You must always be physically located with your partner when developing code. You may not do any coding, including documentation, without your partner present.
• You may not use or even look at any code you have previously developed without your partner. This means, if you choose to split with a partner, you must both start over from scratch with your new partner. Completely throw your old code away; this is a requirement.
• You and your partner must both be active contributors to the code. This mean, you must both be engaged in the development (talking, typing, suggesting, etc) and you must switch roles regularly.
• You may not split the code and develop it separately, even if you are sitting right next to each other. You must collaboratively develop a single solution.

Choosing a partner

You can choose your own partner. You can use the “Search for Teammates” post on Piazza to find a partner if you are having trouble. Otherwise, we will pair you up with someone close to your (self-reported) skill level (based on the survey).

If you are selecting your own partner, You should try to pick a partner whose experience and skill level with programming is similar to your own. This may not always be possible and it is sometimes hard to compare skill levels, but students tell us (and other data supports) that pairs are most productive when the partners start at about the same level. Still, people often pair up with another whose skills are different. The differences may be great or small, but this is exactly like most real-world working situations. Part of accomplishing a task is to get the most out of each member and make each member stronger and more productive on subsequent tasks.

Students bring different strengths to the process, regardless of how much experience they have had with programming. Both experienced and inexperienced students will need to draw on their reasoning and problem solving skills. A more experienced partner may sometimes feel frustrated or slowed down by a less experienced partner, but the experienced partner still benefits from the teamwork in many ways. The less experienced partner’s requests for clarification often uncover flaws in an approach or solution; the exercise of providing a clear explanation solidifies and deepens the explainer’s own understanding and the teamwork and communication skills they gain have great value in both the academic realm and the job market.

“My partner had never coded anything before so I was able to teach him a little bit about how it worked. The teaching bit helped me a lot with understanding the labs and passing the exams.” – CS student

The less experienced partner may feel that questions hold the other partner back or that there is no benefit to participating actively, but pair programming studies show that paired work is consistently better than work the stronger partner does alone. It is each partner’s job to understand the whole task; that means asking questions when necessary and answering them when possible.

You will need to arrange times to meet outside of class. We expect everyone to be flexible and professional in arranging those times as necessary; if your schedule is highly constrained, explore possible meeting times with your prospective partner before you commit to the partnership.

Dealing with differences

If you believe your partner is not participating appropriately in pair programming (e.g., they do not keep in touch, do not come prepared to work on the assignment, or do not seem to be engaged in the process) please first address your concerns to your partner, and try to agree on what should be done to make the pair programming experience work well for both of you. If that approach is not successful, explain the issues to your teaching assistant, who will work with you and your partner to improve the situation.

If your differences cannot be resolved, or if your partner stops participating, you should mutually agree to separate for the rest of the assignment. You may complete the assignment on your own or with a new partner, but you must start over from scratch, as described above. You should never simply abandon your partner without coming to a mutual agreement that this is the best course of action.

To encourage each student to pull their weight and be a good partner, you are free to change partners at any time throughout the quarter if you like.

How pair programming affects your grade

You and your partner will receive the same score on your code.

When in doubt, seek clarification

Pair programming is shown to help, not hinder, your successful completion of the course. It is important that you understand the processes and expectations up front so you can gain the most benefit. If you are unsure of any of the aspects of pair programming and how it is implemented in the course, see the teaching staff right away or contact “Instructors” on Piazza.