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Web-Based Data Analysis and Feedback for General Chemistry Laboratory: Improving Analysis with Timely, Distance Feedback

Published online by Cambridge University Press:  11 February 2011

Joseph F. Lomax
Affiliation:
United States Naval Academy, Chemistry Department Annapolis, MD 21402, (lomax@usna.edu)
Debra K. Dillner
Affiliation:
United States Naval Academy, Chemistry Department Annapolis, MD 21402, (lomax@usna.edu)
Melonie A. Teichert
Affiliation:
United States Naval Academy, Chemistry Department Annapolis, MD 21402, (lomax@usna.edu)
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Abstract

In a general chemistry course, while the hands-on experience of the laboratory is important, the goals of the laboratory are not fulfilled until the calculations and analysis are complete. Quite often students are capable of following laboratory instructions and generating excellent data, only to fail in the data analysis, which rarely occurs in the confines of the laboratory or the presence of the instructor. All too often, students are unable to learn important information from the interpretation of experimental results and draw correct conclusions because they make calculational errors, which are most often discovered by the instructor in the grading process. There is an opportunity for distance learning to help bridge the gap between collection of data and its correct analysis. At the United States Naval Academy (USNA), we have developed a Web-based system where the students input their data and calculational results into a web form with immediate feedback. The students are then allowed to correct their errors and resubmit. This system has been in successful use for 5 years. A description of a typical experiment will be discussed along with an assessment of student and faculty satisfaction with the program.

Type
Research Article
Copyright
Copyright © Materials Research Society 2003

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References

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