Service-Learning in Undergraduate General Chemistry: A Review

Background: Service-learning is gaining recognition as a valuable pedagogy for students to gain both academic and psychosocial benefits. This high-impact practice allows students to achieve course learning objectives while contributing to their community\u27s needs. A review from 2007 revealed a lack of research focused on the topic in the prior decade, despite the interest that was shown by the American Chemical Society in 2000. Purpose: This review of recent case studies on the topic provides future researchers and practitioners with an understanding of the current state of service-learning in undergraduate chemistry courses. Methodology/Approach: To create a representative sample of recent literature for a non-exhaustive scoping review, only peer-reviewed articles addressing service-learning in undergraduate chemistry, published in reliable journals in the last two decades were included. These studies were analyzed in terms of course design, research design, and research quality. Findings/Conclusions: While the scoping review identified papers with notable contributions to establishing service-learning in undergraduate general chemistry, the review also identified several key gaps in the literature, including small sample size, reliance on subjective and indirect measures, and qualitative measures that exclude correlation analysis. Implications: Recommendations for future work for both practitioners and researchers are provided

A Case Study of Community of Inquiry Presences and Cognitive Load in Asynchronous Online STEM Courses

The design and facilitation of asynchronous online courses can have notable impacts on students related to persistence, performance, and perspectives. This case study presents current conditions for cognitive load and Community of Inquiry (CoI) presences in an asynchronous online introductory undergraduate STEM course. Researchers present the novel use of Python script to clean and organize data and a simplification of the instructional efficiency calculation for use of anonymous data. Key relationships between cognitive load and CoI presences are found through validated use of NASA-TLX instrument and transcript analysis of discussion posts. The data show that student presences are not consistent throughout a course but are consistent across sections. Instructor presences are not consistent throughout a course or across sections. The study also explored predominant factors within each presence, confirming previous reports of low cognitive presence in discussions. The highest extraneous cognitive load was reported for understanding expectations and preparing an initial post. These results provide support for improvements to course design and instructor professional development to promote Community of Inquiry and reduce extraneous cognitive load

If at First You Do Not Succeed: Student Behavior When Provided Feedforward With Multiple Trials for Online Summative Assessments

Best practices suggest that timely, actionable feedback is provided with the option to apply the feedback. We used a learning management system to deliver assessments with automatic feedback provided at the conclusion of the assessment, allowing for multiple attempts in order to apply the knowledge gained. Questions were pooled so each attempt was unique, the highest score earned was awarded, with no penalty for failure to use multiple attempts. We found that students who did not earn an A on their first attempt were more likely to try again. Those that did tended to score better on their second attempt. This leads us to conclude that assessment design with multiple attempts that incorporates feedforward influences student behavior. Future work will include additional STEM general education courses in a broader study and a survey of student opinions regarding the utility of the feedback and the option for multiple attempts

A Comparison of Online and Traditional Chemistry Lecture and Lab

While the equivalence between online and traditional classrooms has been well researched, very little effort has been expended to do such comparisons for college level introductory chemistry. The existing literature has only one study that investigated chemistry lectures at an entire course level as opposed to particular course components such as individual topics or exams. Regarding lab courses, only one study is available and it involves moderating variables that are largely uncontrolled. In this work, we compared the student pass rates, withdrawal rates, and grade distributions between asynchronous online and traditional formats of an introductory chemistry lecture as well as its associated lab course. The study was based on the 823 university records available for the 2015–2016 academic year. Student pass and withdrawal rates between the two modes were quite similar and did not appear to be statistically significant. However, grade distributions for both the lecture and lab differed between the two learning modes, showing significant statistical associations. Online students were more likely to earn As in both lecture and lab while traditional in-person students were more likely to earn Cs or Ds. Further research should include replication of this study with a larger data set. Additionally, this study should be repeated in three to five years to determine if advances in course design, standardization and delivery platforms further reduce or eliminate differences between learning modes. Future studies should also use qualitative tools for a better understanding of why students fail or withdraw from courses

Service-Learning in Undergraduate General Chemistry: A Review

Background: Service-learning is gaining recognition as a valuable pedagogy for students to gain both academic and psychosocial benefits. This high-impact practice allows students to achieve course learning objectives while contributing to their community\u27s needs. A review from 2007 revealed a lack of research focused on the topic in the prior decade, despite the interest that was shown by the American Chemical Society in 2000. Purpose: This review of recent case studies on the topic provides future researchers and practitioners with an understanding of the current state of service-learning in undergraduate chemistry courses. Methodology/Approach: To create a representative sample of recent literature for a non-exhaustive scoping review, only peer-reviewed articles addressing service-learning in undergraduate chemistry, published in reliable journals in the last two decades were included. These studies were analyzed in terms of course design, research design, and research quality. Findings/Conclusions: While the scoping review identified papers with notable contributions to establishing service-learning in undergraduate general chemistry, the review also identified several key gaps in the literature, including small sample size, reliance on subjective and indirect measures, and qualitative measures that exclude correlation analysis. Implications: Recommendations for future work for both practitioners and researchers are provided