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In this study, we studied whether the number of revisions allowed per problem when error-flagging feedback is provided has a significant effect on learning. We used a partial cross-over study and analyzed the data collected by two adaptive tutors on while loops and for loops over six semesters. We found that when students were unfamiliar with the concepts, they solved fewer problems and therefore, learned significantly less when they were provided more opportunities for revision with error-flagging feedback. But, once they became more familiar with the concepts, allowing for more revisions had no deleterious effect on learning.
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CNC Routers for Luthiers
CNC Routers are kinda like computers. Once they were huge and cost more than a house. Therefore they were mostly in the domain of large corporations. Now they are far smaller, and the price tag is closer to a few months’ rent. Therefore they will be ubiquitous. This article lets you know what it would take to get on the bus.
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- Award ID(s):
- 1700531
- PAR ID:
- 10156884
- Date Published:
- Journal Name:
- American lutherie
- Volume:
- 137
- ISSN:
- 1041-7176
- Page Range / eLocation ID:
- 16-21
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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