A Series of CGI/Perl Scripts for Web-Based Feedback and Reporting in the General Chemistry Laboratory: Colorimetry

1998 ◽  
Vol 3 (6) ◽  
pp. 1-24 ◽  
Author(s):  
JOSEPH F. LOMAX ◽  
DEBRA K. DILLNER ◽  
JOHN W. VERDE
2002 ◽  
Vol 760 ◽  
Author(s):  
Joseph F. Lomax ◽  
Debra K. Dillner ◽  
Melonie A. Teichert

ABSTRACTIn 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.


2020 ◽  
Author(s):  
William J. Howitz ◽  
Taylor A. Thane ◽  
Taylor Frey ◽  
Xinran S. Wang ◽  
Joe C. Gonzales ◽  
...  

The instruction of high enrollment general and organic chemistry laboratories at a large public 10 university always have curricular, administrative, and logistical challenges. Herein, we describe how we met these challenges in the transition to remote teaching during the COVID-19 pandemic. We discuss the reasoning behind our approach, the utilization of our existing web-based course content, the additions and alterations to our curriculum, replacement of experimental work with videos, the results of both student and TA surveys, and lessons learned for iterations of these courses in the near 15 future.


2020 ◽  
Author(s):  
William J. Howitz ◽  
Taylor A. Thane ◽  
Taylor Frey ◽  
Xinran S. Wang ◽  
Joe C. Gonzales ◽  
...  

The instruction of high enrollment general and organic chemistry laboratories at a large public 10 university always have curricular, administrative, and logistical challenges. Herein, we describe how we met these challenges in the transition to remote teaching during the COVID-19 pandemic. We discuss the reasoning behind our approach, the utilization of our existing web-based course content, the additions and alterations to our curriculum, replacement of experimental work with videos, the results of both student and TA surveys, and lessons learned for iterations of these courses in the near 15 future.


2020 ◽  
Author(s):  
William J. Howitz ◽  
Taylor A. Thane ◽  
Taylor Frey ◽  
Xinran S. Wang ◽  
Joe C. Gonzales ◽  
...  

The instruction of high enrollment general and organic chemistry laboratories at a large public 10 university always have curricular, administrative, and logistical challenges. Herein, we describe how we met these challenges in the transition to remote teaching during the COVID-19 pandemic. We discuss the reasoning behind our approach, the utilization of our existing web-based course content, the additions and alterations to our curriculum, replacement of experimental work with videos, the results of both student and TA surveys, and lessons learned for iterations of these courses in the near 15 future.


Author(s):  
Sara Altowaiji ◽  
Rakahn Haddadin ◽  
Priscilla Campos ◽  
Shannon Sorn ◽  
Lizbeth Gonzalez ◽  
...  

Chemistry laboratory experiences provide students the opportunity to engage all three domains of learning: psychomotor, cognitive and affective. However, they are often stressful environments where students are expected to quickly learn new laboratory techniques, and collect data in a short amount of time. In principle, providing additional preparation activities should help students be better prepared to successfully complete the lab. These activities should lead to more meaningful interactions with the lab instructor and better performance on lab outcomes. In this study, we report the usefulness and effectiveness of online preparation activities for students that include video lectures demonstrating the labs that the students will participate in, and preparation questions that mimic data analysis for the lab. These online prelab activities were implemented in the second semester general chemistry laboratory at a large Hispanic serving institution in the southwestern United States. Over three semesters, students enrolled in this course were surveyed using the Meaningful Learning in the Laboratory Instrument (MLLI) to assess their lab expectations as well as author generated post-lab surveys to assess the usefulness of the prelab activities. Additionally, lab instructors were surveyed on their perception of the efficacy of the additional preparation activities. Findings suggest that both students and instructors agree that having access to these materials as a part of a portfolio of resources, including the lab manual, help them better prepare for the lab. Although students’ expectations on the cognitive domain decreased after a semester of instruction, questions related to comfort with lab equipment show improvements in the affective domain for students with access to the additional preparation activities. Lastly we found that both students and instructors see a lot of value and benefits in having these types of prelab activities available as a way to help prepare students for the upcoming laboratory sessions. In general, the potential benefits that prelab activities had on students outweigh the modest effort to create these materials.


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