No Arabic abstract
In this work, we analyse all existing data related to the number of incomers and outcomers (who actually obtain the degree) of the following courses offered at the Federal University of Santa Catarina: physics teaching, bachelor in physics, master of sciences in physics and doctorate in physics, corresponding to the 1998-2017 period, according to their availability. The data point towards a great male predominance (larger than 76%) and a huge evasion of both sexes (in average, less than 20% of the undergraduate incomers obtain the degree), the evasion being lower in the postgraduate courses and always slightly higher for women. The average number of incomers and outcomers per year decreases as the students advance from graduate to postgraduate courses, although many students in the postgraduate courses come from other institutions. The proportion of women decreases as the carrier advances. The results indicate the need of complementary studies that can help the identification of the causes of such a high evasion in order to minimize them.
The lack of diversity and the under-performance of underrepresented students in STEM courses have been the focus of researchers in the last decade. In particular, many hypotheses have been put forth for the reasons for the under-representation and under-performance of women in physics. Here, we present a framework for helping all students learn in science courses that takes into account four factors: 1) characteristics of instruction and learning tools, 2) implementation of instruction and learning tools, 3) student characteristics, and 4) students environments. While there has been much research on factor 1 (characteristics of instruction and learning tools), there has been less focus on factor 2 (students characteristics, and in particular, motivational factors). Here, we focus on the baseline motivational characteristics of introductory physics students obtained from survey data to inform factor 2 of the framework. A longitudinal analysis of students motivational characteristics in two-semester introductory physics courses was performed by administering pre- and post-surveys that evaluated students self-efficacy, grit, fascination with physics, value associated with physics, intelligence mindset, and physics epistemology. Female students reported lower self-efficacy, fascination and value, and had a more fixed view of intelligence in the context of physics compared to male students. Grit was the only factor on which female students reported averages that were equal to or higher than male students throughout introductory physics courses. These gender differences can at least partly be attributed to the societal stereotypes and biases about who belongs in physics and can excel in it. The findings inform the framework and have implications for the development and implementation of effective pedagogies and learning tools to help all students learn.
The use of lab notebooks for scientific documentation is a ubiquitous part of physics research. However, it is common for undergraduate physics laboratory courses not to emphasize the development of documentation skills, despite the fact that such courses are some of the earliest opportunities for students to start engaging in this practice. One potential impediment to the inclusion of explicit documentation training is that it may be unclear to instructors which features of authentic documentation practice are efficacious to teach and how to incorporate these features into the lab class environment. In this work, we outline some of the salient features of authentic documentation, informed by interviews with physics researchers, and provide recommendations for how these can be incorporated into the lab curriculum. We do not focus on structural details or templates for notebooks. Instead, we address holistic considerations for the purpose of scientific documentation that can guide students to develop their own documentation style. Taking into consideration all the aspects that can help improve students documentation, it is also important to consider the design of the lab activities themselves. Students should have experience with implementing these authentic features of documentation during lab activities in order for them to find practice with documentation beneficial.
It is a well-studied notion that women are under-represented in the physical sciences, with a leaky pipeline metaphor describing how the number of women decreases at higher levels in academia[1,2]. It is unclear, however, where the major leaks exist and what factors are responsible for this[2]. Our focus here is on women in physics with an emphasis on practical laboratory work.
In this study, we explored the extent to which problems and instructional strategies affect social cohesion and interactions for information seeking in physics classrooms. Three sections of a mechanics physics course taught at a Chilean University in Coquimbo were investigated. Each section had a weekly problem-solving session using different sets of well and/or ill-structured problems (i.e., algebra-based and open-ended problems respectively), as well as instructional strategies for guiding the problem-solving sessions. Data was collected on networks of information seeking and perceptions of good physics students, during a problem-solving session. We used social network analysis (SNA) for constructing variables while conducting the study. Results suggest that the teaching and learning strategies to guide problem-solving of well and ill-structured problems yield different levels of social interaction among classmates, and significant levels of activity in seeking out information for learning and problem-solving. While strategies for guiding problem-solving lend to significant differences for network connectivity, well and ill-structured physics problems predict similar levels of social activity.
Students face diverse pathways as they journey through undergraduate study. The analysis of student course records can untangle common patterns in course progression, and identify group trends in student outcomes. The current work examines the relationship between gender and undergraduate physics study, using course records from over nine thousand students who enrolled in physics at the University of Auckland, spanning a six year period. Physics students demographic and course records were analyzed to find out whether there were gender differences in subject selection, course performance, and confidence. Subsequent to taking a first year physics course, female students were more likely to take further courses in life science subjects, while male students were more likely to take physical science subjects. In first year courses, gender differences were not present among highly academically prepared students, for whom school type (single-sex or coeducational) was a better predictor of course outcome. However, of those students who were less academically prepared in their first year, male students tended to outperform female students. Female students were also more likely to take an introductory physics course before an advancing course, compared to male students, after controlling for academic preparation. Science capital, a concept related to Pierre Bourdieus notions of capital and habitus, was employed as an interpretive research framework. Habitus, the system of dispositions one uses to interpret the world, is largely influenced by the socio-cultural context in which an individual builds their identity. The following study explains how an interaction between science capital and an individuals habitus may lead to gender disparities in student outcomes in the field of physics.