scholarly journals Integrating hands‐on model building with graded online discussions to learn DNA structure‐function relationships in an upper level General Biochemistry course for majors

2020 ◽  
Vol 34 (S1) ◽  
pp. 1-1
Author(s):  
Kristopher Charles Hite
2017 ◽  
Vol 79 (3) ◽  
pp. 200-206
Author(s):  
Erika V. Iyengar ◽  
Paul T. Meier ◽  
Rachel E. Hamelers

This article describes a sustained, student-driven, inquiry-based set of activities meant to illuminate the scientific process from the initial scientific questions to oral dissemination of results. It is appropriate for science majors and nonmajors, advanced high school through upper-level college courses. Involving students in hands-on, self-driven investigations will allow them to see the challenges of quantitative scientific investigations, and the role of scientific creativity in experimental design and interpretation. This project allows a large group of students to engage in the type of research project often only available to students working one-on-one with instructors or in research labs. This activity requires skeletons of multiple species of small mammals, but there are many ways to alter the project to suit available resources. We expect that students involved in hands-on, self-directed scientific investigations early in their academic careers are less likely to view science as a mere accumulation of facts and more likely to be empowered to participate later in more sustained scientific investigations.


Author(s):  
Marina Kholod ◽  
Yury Lyandau ◽  
Valery Maslennikov ◽  
Irina Kalinina ◽  
Nikolay Mrochkovskiy
Keyword(s):  

2013 ◽  
Vol 75 (9) ◽  
pp. 708-709
Author(s):  
Christine Priano

This model-building activity provides a quick, visual, hands-on tool that allows students to examine more carefully the cloverleaf structure of a typical tRNA molecule. When used as a supplement to lessons that involve gene expression, this exercise reinforces several concepts in molecular genetics, including nucleotide base-pairing rules, the importance of molecular shape, the consequences of genetic mutation, and similarities and differences between DNA and RNA.


1987 ◽  
Vol 49 (7) ◽  
pp. 436-438 ◽  
Author(s):  
Patsye Peebles ◽  
William H. Leonard

2020 ◽  
Vol 4 (4) ◽  
Author(s):  
Courtney Merson ◽  
Francisco Javier Navas Gonzalez ◽  
Emma Orth ◽  
Anneli Adams ◽  
Amy McLean

Abstract The COVID-19 pandemic has challenged professors and students of all disciplines to adjust quickly to remote online teaching and education platforms. In this new era of remote teaching, a greater challenge has been presented in the field of equine science; how to effectively share knowledge that is most often demonstrated by providing students access to live, in-person animal examples. Historically, students and teachers believed skill sets, which are vital for future careers in the industry (e.g., veterinarian) must be learned through hands-on experience. However, in-person methods were not available, so students were taught through the Zoom platform. Students enrolled in various levels of equine science classes were invited to complete a short voluntary questionnaire measuring their response and perception to equine courses taught in an entirely online remote setting by the same professor. One group was comprised of undergraduates majoring in the field (n = 44) in upper level equine science courses, Advanced Equine Reproduction Physiology and/or Equine Enterprise. These students, 41 females and 3 males, ranged in age from 20 to 25 yr, were provided a voluntary questionnaire seeking responses related to the perceived effectiveness and individual preferences of in-class lectures and in-person labs vs. remote online teaching practices. A similar questionnaire was offered on a volunteer basis to precollege students (n = 17). These students, female, high-school students from freshman to senior status (14–18 yr of age), were interested in equine science as a major at UC Davis in the future. This questionnaire evaluated their response to a 2-week remote synchronous online equine science course, which included multiple teaching methods, including lectures, mini labs, and full labs. Responses from both populations suggested that equine courses were perceived as effective when offered as online, remote courses. Live (synchronous) classes and labs offered on Zoom increased engagement and interaction, but students also appreciated the opportunity to access recorded materials. Students responded positively to online remote teaching and found courses to be effective for increasing their knowledge about equine science in an engaging manner, despite their continued preference for in-person instruction.


Author(s):  
Kathryn A. Marold ◽  
Gwynne Larsen ◽  
Abel Moreno

In an in-depth study of Internet and classroom students’ test grades and assignment grades spanning three semesters, it was found that there is a significant difference in achievement and performance for these two types of course delivery. Although there were not significant differences in the final grades for two of the three levels of computer information systems students in CMS 1010, CMS 2010, and CMS 3270 at Metropolitan State College of Denver, there were significant differences between classroom students and Internet students when the authors examined performance—as measured by eight homework assignments and achievement—as measured by test scores. Reinforcing what many studies have found, the distribution of final grades among eighteen classes (nine Internet delivered and nine classroom delivered) did not differ significantly, but how those grades were earned did differ for two of the three sets. Internet students did better on the exams, with significant differences at all three levels. When performance was compared, there was a significant difference for the junior set of data. Classroom students performed better on the hands-on homework assignments for this level. The upper level course student averages differed significantly in both achievement and performance measures. The three courses examined all had the same instructor for Internet and classroom sections; all had exactly the same tests and assignments for their particular course; all three courses had a hands-on skills component. The authors caution against generalizing about all Internet-delivered courses from the results of this study. It appears that there are significant differences in online learning experiences when one delves more deeply into how mastery of material is obtained. The sample size of 302 students provided a rich data set which showed variances according to gender, class level, past experience with Internet delivered courses, and even age. T tests were performed on three sets of matched pairs of students. The authors believe the findings support the theory that Internet delivered distance education courses require different design. More importantly, however, this research demonstrates that Web courses are working. As more research is done on achievement and performance in Internet-delivered classes, and as our instructional design for Web courses is refined, we will find the best way to design these distance education course


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