3D printing of quantitative chemical containers (QCCs): An active learning activity for analytical chemistry

Author(s):  
Muhsinah Morris
2022 ◽  
pp. 146978742110730
Author(s):  
Karin Väyrynen ◽  
Sonja Lutovac ◽  
Raimo Kaasila

Previous research has emphasized both the importance of giving and receiving peer feedback for the purpose of active learning, as well as of university students’ engagement in reflection to improve learning outcomes. However, requiring students to explicitly reflect on peer reviewing is an understudied learning activity in higher education that may contribute to the utilization of peer-feedback and promote further learning. In this study, we suggest reflection on peer reviewing as one approach to providing a platform for students to engage in reflective practices and for stimulating active learning in higher education, and to make that learning visible to the educator. We examine 26 undergraduate students’ reflections on peer-review to identify categories of reflection and what students have learnt from the peer reviewing process. Our findings reveal six different categories of reflection suggesting students’ active engagement in learning and pointing to the ways educators can direct and instruct students how to reflect. We discuss how these findings can inform university lecturers in the use of reflection upon peer reviewing as a pedagogical tool in higher education.


2018 ◽  
Vol 42 (2) ◽  
pp. 182-191 ◽  
Author(s):  
Renee M. McFee ◽  
Andrea S. Cupp ◽  
Jennifer R. Wood

Didactic lectures are prevalent in physiology courses within veterinary medicine programs, but more active learning methods have also been utilized. Our goal was to identify the most appropriate learning method to augment the lecture component of our physiology course. We hypothesized that case-based learning would be well received by students and would be more effective at helping them learn physiological concepts compared with more traditional laboratory exercises. In this study, approximately one-half of the laboratory sessions for the two-semester course were dedicated to traditional hands-on laboratory exercises, whereas the remaining one-half of the sessions were dedicated to case-based exercises. The lecture portion of the course was not altered. Student attitudes were evaluated after each session and at the end of each semester via quantitative and qualitative survey questions. Student performance was evaluated using section exams and end-of-semester posttests. The vast majority of survey responses received were positive for both cased-based activities and traditional hands-on laboratories. In addition, participation in both types of active learning activities, but not lecture, was associated with retention of conceptual knowledge based on student performance between the section exams and posttests ( P < 0.002). These results indicate that both case-based learning and laboratory exercises are beneficial learning activities to incorporate into a lecture-based physiology course. However, positive survey responses were significantly greater following case-based activities vs. traditional hands-on laboratories, and only participation in case-based activities resulted in greater student performance on the posttest ( P < 0.04). Therefore, case-based activities may be the preferred supplemental learning activity for veterinary medical physiology.


1941 ◽  
Vol 73 (6) ◽  
pp. 681-694 ◽  
Author(s):  
Michael Heidelberger

1. A quantitative micro method, conforming to the criteria of analytical chemistry, is proposed for the estimation of complement, or its combining component or components, in milligrams per milliliter instead of in the customary relative and variable volume units. 2. Data are given showing the range of accuracy and reproducibility of the new method.


Pharmacy ◽  
2018 ◽  
Vol 6 (1) ◽  
pp. 16 ◽  
Author(s):  
Stephen Slauson ◽  
Prashant Mandela

2016 ◽  
Vol 25 (4) ◽  
pp. 368-395 ◽  
Author(s):  
Yves Levant ◽  
Michel Coulmont ◽  
Raluca Sandu

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