Discussion 9 handout

Group members (names & NetIDs)

Objectives

• Review skills covered by the second prelim exam.

Overview

Our exam study guide includes a thorough list of skills that you should be able to perform at this point in the course, divided into 7 categories:

1. Efficiency
2. Recursion
3. Trees
4. Loop invariants and searching
5. Sorting and comparisons
6. Dictionaries and hashing
7. GUIs and lambda expressions

Your TAs have written questions that exercise these skills and will select several to review during section. Work with your group to answer the questions as they are presented, recording your work and final answer on your worksheet. Submit this worksheet as usual at the end of section.

Problem 1

Problem 2

Problem 3

Problem 4

Problem 5

Submission

1. Open the assignment page for “Discussion activity 9” in CMSX
2. [Recorder] Find the “Group Management” section and invite each group member
3. [Others] Refresh the page and accept your invitation
4. [Recorder] Take a picture of your work and save as either a JPEG or a PDF file named “discussion_responses”. After all invitations have been accepted, upload your picture as your group’s submission.
   • Recommended scanning apps: Microsoft Office Lens, Adobe Scan, Genius Scan, Evernote Scannable

Ensure that your group is formed and your work submitted before the Friday evening deadline.

Tips and reminders

• Discussion is not a race. Focus on the current activity being facilitated by your TA and engage your whole group to propose and explain ideas.
• Elect a recorder to maintain the “master” copy of your work (others are still encouraged to jot down ideas on scratch paper). Rotate this position each week.
• It is a violation of academic integrity to credit someone for work if they were not present when the work was done, and the whole group is accountable. Your CMS group must only include classmates who attended section with you on that day. Remember that our participation policies accommodate occasional absences without penalty.
• It is your individual responsibility to ensure that you are grouped on CMS and that your group’s work is submitted before the deadline. Log into CMS the day after section to ensure that everything is in order, and contact your groupmates if not. It would be prudent for multiple members to photograph the group’s work.
• Only one group member (typically the recorder) needs to upload a submission. But their submission must not be uploaded until after all group members have confirmed their membership in CMS (contact your TA if you have trouble grouping in CMS).