Foobaz: Variable Name Feedback for Student Code at Scale
summary
Foobaz is a teacher interface plus backend that clusters variables by variable role (the runtime sequence of values), lets instructors label a few names, and auto-generates personalized quizzes for student submissions. It processes thousands of MOOC solutions, condenses similar programs into stacks (e.g. 1,500 of 4,000), and in studies ten graders spend 4–11 minutes labeling ~20 names to cover ~75% of solutions; six students then receive and validate the quizzes.
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chapters (12)
- 0:00Introduction
- 0:31Scalable teacher feedback
- 1:37Foobaz
- 2:19Variable Roll
- 2:54Stacks
- 3:56Teacher View
- 5:07Student View
- 5:37Demo
- 7:35Workflow
- 8:10Submission
- 9:34Results
- 11:24Conclusion
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