Havruta Goes to University: Havruta-style Text Study in a College Education Class

ABSTRACT

This article presents original qualitative research applying paired text study, havruta learning, to the secular college classroom. I adapted this method to a first-year seminar in a public university and found that students perceived that havruta improved their abilities to verbalize their understandings through reading text aloud and debating one another, opened their eyes to new perspectives, engaged them in argumentation, and empowered them to take charge of learning. Despite students’ overall resoundingly positive reflections upon their havruta experience, I also inquired as to perceived disadvantages, which included unbalanced participation, discomfort with disagreeing, and agreement leading to stagnation. Strategies I posit to address these challenges include planning for and evaluating future havruta learning and evaluating the balance and quality of work of partners.     

Teaching for Open‐Mindedness: A Justice‐Oriented Approach

This article explores the pedagogical virtue of open‐mindedness in practice and its relationship to epistemic justice through analysis of a fictional, narrative case. The case focuses on a young white woman who attempts to implement a pedagogy of open‐mindedness as she teaches a unit on the civil rights movement. After presenting the case scenario, Tadashi Dozono and Rebecca Taylor examine three tensions that arise for teachers as they seek to enact a pedagogy of open‐mindedness. First, what form of open‐mindedness should guide them? Second, how should they respond to limits in their own knowledge and understanding? And finally, how should teachers exercise authority within a pedagogy of open‐mindedness? Their analysis confronts the tension between the teacher's own open‐mindedness, on the one hand, and the teacher's subject position, on the other. Through this exploration of open‐mindedness, Dozono and Taylor argue that, in practice, teachers must counteract legacies of epistemic injustice as a necessary part of cultivating their own and their students' access to open‐mindedness.     

Development and evaluation of the organic chemistry-specific achievement emotions questionnaire (AEQ-OCHEM)

Affect is associated with success and persistence in STEM courses and degree programs. Measurement tools that produce valid and reliable data are essential to capturing the impact of evidenced-based instructional practices and reformed curricula on learning. We report the development of the Achievement Emotions Questionnaire for use in postsecondary organic chemistry courses (AEQ-OCHEM). Instrument development was based on the control-value theory of achievement emotions and included a revision of the seminal Achievement Emotions Questionnaire (AEQ) used to measure institutional-level learning. A thorough psychometric evaluation of the AEQ-OCHEM was conducted including alternative measurement models and an extensive investigation of the nomological framework. All AEQ-OCHEM subscales were determined to be coherent and distinct. Implications for future research using the AEQ-OCHEM are offered. A call for the development of more discipline- and course-based instruments is made. Finally, tools that measure achievement emotions in the context of instructional laboratories and undergraduate research are needed for more robust considerations of affect in STEM contexts.     

Polymerase chain reaction: It’s diagnostic application

The development of the Polymerase Chain Reaction (PCR) has been a major technical milestone in molecular genetics with the greatest impact on research, in rapid medical diagnosis and in studying the pathogenesis of disease. This study highlights the practical applications of polymerase chain reaction in diagnosis and includes a recent application of PCR in differentiating polio from other nonpolio enteroviruses.     

Exploring DNA structure with Cn3D

Researchers in the field of bioinformatics have developed a number of analytical programs and databases that are increasingly important for advancing biological research. Because bioinformatics programs are used to analyze, visualize, and/or compare biological data, it is likely that the use of these programs will have a positive impact on biology education. Over the past years, we have been working to help biology instructors introduce bioinformatics activities into their curricula by providing them with instructional materials that use bioinformatics programs and databases as educational tools. In this study, we measured the impact of a set of these materials on student learning. The activities in these materials asked students to use the molecular structure visualization program Cn3D to locate, identify, or analyze diverse features in DNA structures. Both the experimental groups of college and high school students showed significant increases in learning relative to control groups. Further, learning gains by the college students were correlated with the number of activities assigned. We conclude that working with Cn3D was important for improving student understanding of DNA structure. This study is one example of how a bioinformatics program for visualization can be used to support student learning.     

Remembering as discrimination in delayed matching to sample: Discriminability and bias

Task difficulty in delayed matching-to-sample tasks (DMTS) is increased by increasing the length of a retention interval. When tasks become more difficult, choice behavior becomes more susceptible to bias produced by unequal reinforcer ratios. Delaying reinforcement from choice behavior also increases both task difficulty and the biasing effect of unequal reinforcer probability. Six pigeons completed nine DMTS conditions with retention intervals of 0, 2, 4, 6, and 8 sec, in which reinforcer delays of 0, 2, and 4 sec were combined with ratios of reinforcer probabilities of .5/.5, .2/.8, and .8/.2 for correct red and green responses. Discriminability (logd) decreased with both increasing retention interval duration and increasing reinforcer delay. Sensitivity to reinforcement, the tendency for ratios of choice responses to follow unequal reinforcer probabilities, also increased as a function of both increasing retention interval and increasing reinforcer delay. The result is consistent with the view that remembering in DMTS tasks is a discriminated operant in which increasing task difficulty increases sensitivity to reinforcement.     

Intensive instruction affects brain magnetic activity associated with oral word reading in children with persistent reading disabilities

Fifteen children ages 7 to 9 years who had persistent reading difficulties despite adequate instruction were provided with intensive tutorial interventions. The interventions targeted deficient phonological processing and decoding skills for 8 weeks (2 hours per day) followed by an 8-week, 1-hour-per-day intervention that focused on the development of reading fluency skills. Spatiotemporal brain activation profiles were obtained at baseline and after each 8-week intervention program using magnetoencephalography during the performance of an oral sight-word reading task. Changes in brain activity were found in the posterior part of the middle temporal gyrus (Brodmann's Area [BA] 21: increased degree of activity and reduced onset latency), the lateral occipitotemporal region (BA 19/37: decreased onset latency of activation), and the premotor cortex (increased onset latency). Overall changes associated with the intervention were primarily normalizing, as indicated by (a) increased activity in a region that is typically involved in lexical--semantic processing (BA 21) and (b) a shift in the relative timing of regional activity in temporal and frontal cortices to a pattern typically seen in unimpaired readers. These findings extend previous results in demonstrating significant changes in the spatiotemporal profile of activation associated with word reading in response to reading remediation.     

混合式学习获得成功的重要因素：五种假设

基于面对面学习与数字化学习的经验,混合式学习作为二者的结合,成为当前富有前景的学习概念。但是混合式学习能否有效促进学习？哪些是影响混合式学习获得成功的重要因素？从教学方面来讲,要使混合式学习发挥真正的效用,必须正确认识混合式学习的经济价值和教育价值,用课程理念来设计学习过程,根据学习需求选择学习工具,综合考虑教学元素,帮助学生和教师做好新角色的准备。