Team assignments in cs 322 data structures algorithms ii
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Team assignments in CS 322 “Data Structures & Algorithms II”. Jey Veerasamy CIS Adjunct Faculty Baker College Online. CS 321 & CS 322 contents. CS 321 focuses on data structures: arrays, linked lists, vectors, stacks and queues, then a little about recursion algorithms.

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Team assignments in CS 322 “Data Structures & Algorithms II”

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Team assignments in cs 322 data structures algorithms ii

Team assignments inCS 322 “Data Structures & Algorithms II”

Jey VeerasamyCIS Adjunct Faculty

Baker College Online


Cs 321 cs 322 contents

CS 321 & CS 322 contents

  • CS 321 focuses on data structures: arrays, linked lists, vectors, stacks and queues, then a little about recursion algorithms.

  • CS 322 covers advanced data structures like hash tables, binary trees, AVL trees, and graphs, but the focus is more on algorithms: divide-and-conquer, greedy & dynamic programming approaches to solve various problems.


Cs 322 team assignments

CS 322 Team Assignments

  • Goals:

    • Make students analyze the problems (a.k.a. critical thinking)

    • Bring ideas to solve them based on those three approaches to the table

    • Validate each other’s ideas

    • Settle on the “right” data structures & arrive at the detailed pseudocode


What problems

What problems?

  • I use classic problems like Knapsack problem, company party problem, activity scheduling problem, Huffman coding algorithm.

  • Typically these algorithms are taught in graduate courses. So, I try my best to provide “just enough” help to start meaningfully and progress meaningfully.

S1

P

S2

S3


When how

When & How?

  • Spans 2 weeks: High level approach in Week 4 and low level pseudocode in Week 5.

  • I assign 2 to 3 designers & 2 to 3 reviewers for each problem.

  • All discussions done in Weekly discussion forums, NOT in group forums.


Student s roles

Student’s roles

  • Each student is a designer for one problem (40 points) and also a reviewer for another problem (20 points). I reverse the roles in Week 5 for each problem.

Week 4

Week 5

P1

P1

Design

Review

S

S

Review

Design

P2

P2


Week 4 process

Week 4 Process

  • Start of Week 4: designers find the optimal solution for sample input manually and reviewers test it out.

  • Week 4: designers come up with a few workable ideas, reviewers comment on them.

  • End of Week 4: Try to zero in on one approach & verify it for a few sample inputs manually.


Week 5 process

Week 5 process

  • Start Week 5 with solid understanding of high level approach.

  • Bring in the right data structures & details

  • Verify its validity again by testing with a sample inputs.


What is good

What is good

  • Students enjoy the experience. When one student hits the wall, another student brings up an idea, that keeps the team moving.

  • Students learn to work with other’s “incomplete” ideas, practice their skills to give “constructive criticisms”.


Need to work on

Need to work on

  • Sometimes students become impatient and find the solution using “web search”  even though I stress on the “thinking process”, NOT the “end-result”.

  • I try to ensure there is at least one “leader” in each team. But, there are times I end up with no leaders in the team  No one starts the discussion!

  • Some students refuse to post their ideas since they are not sure those ideas will work 


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