This study uses social network analysis and the classroom observation protocol for undergraduate STEM (COPUS) to characterize six research-based introductory physics curricula. Peer Instruction, Modeling Instruction, ISLE, SCALE-UP, Context-Rich Problems, and Tutorials in Introductory Physics were investigated. Students in each curriculum were given a survey at the beginning and end of term, asking them to self-identify peers with whom they had meaningful interactions in class. Every curriculum showed an increase in the average number of student connections from the beginning of term to the end of term, with the largest increase occurring in Modeling Instruction, SCALE-UP, and Context-Rich Problems. Modeling Instruction was the only curriculum with a drastic change in how tightly connected the student network was. Transitivity increased for all curricula except Peer Instruction. We also spent one week per research site in the middle of the term observing courses using COPUS. From these observations, the student COPUS profiles look nearly the same for Tutorials, ISLE recitations, and Context-Rich Problems discussion sections. This is likely due to the large resolution of activities that can be coded as “other group activity,” suggesting the need for a more detailed observation instrument.

This study aims to make a thematic classification of possible misconceptions about solid friction by reviewing papers in the literature which include conceptual difficulties about friction; in this way, the study contributes to the literature. The study’s scope was limited to the dry friction that occurs with the interaction of two solid objects, as this is included in several curricula. Papers in the literature addressing the conceptual difficulties associated with friction were reviewed. Hence, 42 primary data sources (papers) accessed from various databases were subjected to content analysis. Possible misconceptions about friction were determined by the data collection techniques or tools of the study, the educational levels of the sample, and the countries in which they took place. At the end of the study, a list of possible misconceptions about solid friction were classified and listed under four themes: definition and existence, direction, type and magnitude, and effects of friction. Most of the possible misconceptions are in the type and magnitude theme and the least were in the direction theme. But friction is always opposite to the direction of the motion as a possible misconception was detected in the highest number of papers. Related to this, the possible misconception that friction prevents movement was frequently encountered. It was also found that both the distinction between sliding and rolling friction and kinetic and static friction was often ignored. In addition, some of the possible misconceptions were found to be similar regardless of country, culture, or education system, as in the previous literature. One of the results of the study is that possible misconceptions are not only held by the students but also held by teachers and preservice teachers. In this respect, the results of the study are also considerable in terms of the direction of teachers in in-service training studies.

The growing adoption of active learning techniques in physics courses requires that students productively engage in collaboration with their peers. Although studies in physics education research (PER) have addressed aspects of group work, the problem persists of how to engage students in collaborative work with appropriate self-awareness, adequate argumentation skills, openness to the views of others, and willingness to negotiate their ideas. In this article, we present intellectual humility (IH) as a new construct for PER to help advance our understanding and support of students’ collaboration with peers. We particularly focus on authentic group work engagement, where students must handle their intellectual shortcomings during discussions in order to make sense of physics and solve problems. The aim of our work is to formally introduce the construct of IH from a limitations-owning perspective and report on the results of a mixed-methods study investigating students’ learning experiences in introductory physics courses through an IH lens. The study provides quantitative evidence about how students gauge their own IH based on analysis of survey responses. We also provide an initial empirical foundation for facets of IH already present in the physics classroom from analysis of students’ reflections and researchers’ classroom observations. We find that students report high levels of love of learning, one characteristic of IH, however, our findings also point to students discomfort with intellectual limitations and inadequate handling of these shortcomings during group work. Our results suggest that students would benefit from learning spaces that welcome and encourage discussions around uncertainties, with minimal social risks that may be perceived as hindering their engagement.

Many undergraduate and graduate physics students participate in some form of public engagement throughout the course of their studies, often through groups supported by physics departments and universities. These informal teaching and learning programs can offer unique opportunities for both participants and facilitators to interact in a way that fosters physics identity development. Understanding how physics identities can be cultivated will allow us to work toward a field that is inclusive of more identities. In this study, we build on previous work to investigate facilitator experiences in three informal physics programs using an operationalized communities of practice framework. Through our analysis, we identify different structures within these programs that support physics identity development.

Introductory physics for life sciences (IPLS) courses have emerged as a type of physics course within the introductory courses sequence. The interdisciplinary aspects of these courses as well as the diverse student populations that they serve create significant challenges for instructors who choose to design and deliver them. The Living Physics Portal is a collaborative project, funded by the National Science Foundation, that is designed to support instructors involved in teaching IPLS courses. As part of the project, a survey was administered to document current pedagogical beliefs and practices in teaching IPLS courses. On this survey, 383 instructors (out of 762 respondents) reported that they had taught an IPLS course in the past two years. We analyzed instructor perceptions about the effectiveness of their IPLS courses in engaging students and examined predictors of differences in their perceived course effectiveness. Descriptive statistics showed that there is considerable variability in instructors’ perceptions of the degree to which their courses are effective in engaging students. Hierarchical linear regression analyses identified self-reported teaching strategies as independent predictors of perceived course effectiveness, even after controlling for prior teaching experience and community of practice self-perceptions. We present our results and discuss implications for the IPLS community.

Students at upper secondary and college level in many countries are introduced to quantum physics (QP) in a mostly mathless course. Research shows that addressing epistemological and philosophical aspects would be beneficial for novice students’ conceptual understanding. However, physics teachers seldom address these nature of science (NOS) aspects in their lessons. We take the view that teachers only implement these aspects if this serves their goals. This study explores whether experienced Dutch high school teachers, who are not trained for NOS teaching, address NOS in their QP lessons when provided with NOS-infused teaching resources. We based our framework on literature about pedagogic content knowledge and on the principles of the practicality of educational innovations. Teacher interviews ($N=10$) supported by classroom observations provided insights into how and why teachers use specific elements from the resources. Our research reveals teachers’ perspectives on teaching QP in secondary schools and why they think NOS aspects can be helpful to reach their teaching goals. Our findings support the view that conceptual QP is valuable for all students because an informed NOS view is vital for everybody in today’s society. Additionally, we expect that an ecological intervention that supports teachers and at the same time recognizes their professionality and environment has potential implications for other fields of science education and could have a significant positive impact in classrooms.

Student-centered learning has been shown to be more effective than traditional instructional methods, but deeper investigation is necessary to identify how specific classroom practices lead to improved conceptual learning and student attitudes. The purpose of this study was to identify classroom practices associated with gains in student conceptual understanding and physics identity using pre-post survey data taken from a nationally representative sample of first-semester physics students in four-year colleges and universities. From this sample, we found that students who reported working in small groups during every class saw greater gains in their conceptual understanding of physics than students who did not. Other classroom practices, such as the frequent use of computer simulations, using equipment, and performing labs, were also found to increase student conceptual gains. This work provides further evidence that certain instructional practices—small group learning, in particular—provide benefits to students in college physics classrooms.

We surveyed a convenience sample of 362 Italian university physics students, asking them to retrospectively assess their experience of emergency remote instruction due to the COVID-19 outbreak. We looked at their psychological well being, motivation for physics, academic orientation, attitude towards physics and physicists, and tried to link these factors to their overall perception of the online instruction. Our results show a general appreciation for the organization and effectiveness of online courses. However, online teaching negatively impacted on engagement and interaction between peers and with the instructors. Only 22% of students in our sample complained of the psychological distress due to remote instruction. Nonetheless, we found a significant decrease in motivational dimensions, such as interest and recognition. Emergency remote instruction also challenged the students’ self-regulation, self-efficacy, and engagement. Finally, the uncertainty about the future resulted in a more pessimistic attitude towards physics, academic performance, and job perspectives.

One desired outcome of introductory physics instruction is that students will develop facility with reasoning quantitatively about physical phenomena. Little research has been done regarding how students develop the algebraic concepts and skills involved in reasoning productively about physics quantities, which is different from either understanding of physics concepts or problem-solving abilities. We introduce the Physics Inventory of Quantitative Literacy (PIQL) as a tool for measuring Quantitative Literacy, a foundation of mathematical reasoning, in the context of introductory physics. We present the development of the PIQL and evidence of its validity for use in calculus-based introductory physics courses. Unlike concept inventories, the PIQL is a reasoning inventory, and can be used to assess reasoning over the span of students’ instruction in introductory physics. Although mathematical reasoning associated with the PIQL is taught in prior mathematics courses, pretest and post-test scores reveal that this reasoning is not readily used by most students in physics, nor does it develop as part of physics instruction—even in courses that use high-quality, research-based curricular materials. As has been the case with many inventories in physics education, we expect use of the PIQL to support the development of instructional strategies and materials—in this case, designed to meet the course objective that all students become quantitatively literate in introductory physics.

Instructional physics labs offer students unique opportunities to develop an understanding of experimentation. By transforming labs to be more open ended and experimentation focused, instructors can better support student agency and choice. In this study, we examine students’ overall sense of and perceptions about agency in two experimentation-focused labs: one course primarily taken by physics majors and another course primarily taken by engineering majors. We compare the sense of and perceptions about agency between the different courses and between men and women in each course. Between the start and the end of the semester, we found a positive shift in students’ sense of agency in the lab activities in both courses, with no difference between men’s and women’s shifts. Additionally, we found empirical evidence that the majority of the students preferred the final, most open-ended Project lab. Our qualitative analysis revealed that most of the students perceived the opportunities for agency positively, citing “freedom” as their reason for preferring the Project lab. Both women and men in the course for engineering majors showed similar patterns. Fewer women in the physics majors course, however, chose the final project lab as their favorite and less often attributed their preference to freedom. We discuss possible interpretations of these results and implications for instruction.

Ishimoto, Davenport, and Wittmann have previously reported analyses of data from student responses to the Force and Motion Conceptual Evaluation (FMCE), in which they used item response curves (IRCs) to make claims about American and Japanese students’ relative likelihood to choose certain incorrect responses to some questions. We have used an independent dataset of over 6,500 American students’ responses to the FMCE to generate IRCs to test their claims. Converting the IRCs to vectors, we used dot product analysis to compare each response item quantitatively. For most questions, our analyses are consistent with Ishimoto, Davenport, and Wittmann, with some results suggesting more minor differences between American and Japanese students than previously reported. We also highlight the pedagogical advantages of using IRCs to determine the differences in response patterns for different populations to better understand student thinking prior to instruction.

Representational competence is essential for the acquisition of conceptual understanding in physics. It enables the interpretation of diagrams, graphs, and mathematical equations, and relating these to one another as well as to observations and experimental outcomes. In this study, we present the initial validation of a newly developed cross-contextual assessment of students’ competence in representing vector-field plots and field lines, the most common visualization of the concept of vector fields. The Representational Competence of Fields Inventory (RCFI) consists of ten single choice items and two items that each contain three true or false questions. The tool can be easily implemented within an online assessment. It assesses the understanding of the conventions of interpreting field lines and vector-field plots, as well as the translation between these. The intended use of the tool is both to scale students’ representational competences in respect to representations of vector fields and to reveal related misconceptions (areas of difficulty). The tool was administered at three German-speaking universities in Switzerland and Germany to a total of 515 first- and third-semester students from science, technology, engineering, and mathematics subjects. In these first steps of the validation of the RCFI, we evaluated its psychometric quality via classical test theory in combination with Rasch scaling and examined its construct validity by conducting student interviews. The RCFI exhibits a good internal consistency of $\omega =0.86$, and the results of the Rasch analysis revealed that the items discriminate well among students from lower to medium-high competence levels. The RCFI revealed several misunderstandings and shortcomings, such as the confusion of the conventions for representing field lines and vector-field plots. Moreover, it showed that many students believed that field lines must not exhibit a curvature, that the lengths of field lines matter, and that field lines may have sharp corners. In its current version, the RCFI allows assessing students’ competence to interpret field representations, a necessary prerequisite for learning the widespread concept of vector fields. We report on planned future adaptations of the tool, such as optimizing some of the current distractors.

Graduate teaching assistants (GTAs) are key partners in the education of undergraduates. Given the potentially large impact GTAs can have on undergraduate student learning, it is important to provide them with appropriate preparation for teaching. But GTAs are students themselves, and not all of them desire to pursue an academic career. Fully integrating GTA preparation into the professional development of graduate students lowers the barrier to engagement so that all graduate students may benefit from the opportunity to explore teaching and its applications to many potential career paths. In this paper we describe the design and implementation of a GTA preparation course for first-year Ph.D. students at the Georgia Tech School of Physics. Through a yearly cycle of implementation and revision, guided by the 3P framework we developed (pedagogy, physics, professional development), the course has evolved into a robust and comprehensive professional development program that is well received by physics graduate students.

This paper is a follow-up to a previous study, in which students (predominately life science majors) were found to self-express achievement goals with regard to a prelab problem-solving exercise in an algebra-based introductory physics course. In this paper, the same sampled population was also asked in the same feedback survey to discuss what portion or portions of the course were relevant to their respective choices of major; in responding, students expressed another aspect of mindset, namely, perceived relevance of the course to their majors. We primarily investigate the difference between 50 students who perceived no relevance of introductory physics to their major and 168 students who perceived some form of relevance. The primary finding was that students who perceive relevance will experience more expertlike shifts than students who do not. In particular, the attitudinal survey’s item clusters that pertain to personal interest and real-world connections appear to show the strongest effect. Further examination showed that biology majors and health science majors (two distinctive subpopulations of life science majors) show similar pre-post trends for relevance vs irrelevance perceptions, whereas students with a performance achievement goal appeared to bifurcate between a novicelike shift for perceived irrelevance and no attitudinal shift from pre to post for perceived relevance.

This article reports the development of a two-tier simple electric circuits test (2T-SEC Test). Simple electric circuits are introduced to students early in their school years and are an important part of the physics curriculum all the way to the university level. However, many students do not develop an adequate conceptual understanding of simple electric circuits and especially of electrical voltage. For this reason, six physics education research groups from Germany and Austria started a large study to evaluate and improve middle-school students’ conceptual understanding of simple electric circuits. As a first step, we developed the test instrument presented in this article. First, nine semistructured interviews were conducted with middle-school students in Austria. The interviews were transcribed, analyzed and (common) student difficulties with simple electric circuits were identified. Second, based on the results from the interviews and previous research on this topic, an instrument consisting of 25 two-tier multiple-choice items was developed and administered to $N=1568$ middle-school students in Austria and Germany. Third, the data were evaluated using Rasch analysis. The item reliability of the test was 0.99, while the person reliability of paired scoring was 0.62 and the reliability of separate scoring was 0.75. The average difficulties of the main concepts regarding simple electric circuits (open and closed circuits, electric current, resistance, series and parallel circuits, and electrical voltage) were calculated and compared. The analysis suggests that the concept of voltage is most difficult for students while distinguishing between open and closed circuits is the easiest.

We analyzed student engagement in physics during a summer course for incoming first-year students, part of a cohort-based learning community designed for students from underrepresented groups in the School of Engineering of a predominantly white institution. The data—video of an episode within the course and interviews of the 11 students one year later about their experiences in the program and the course—support two findings: (i) The students cared for each other, in a social sense, and felt cared for by the instructor, and (ii) the students framed the course as focused on their own reasoning. We argue that the former supported the latter, and we offer this as a conjecture for further study: Social caring can support productive epistemological framing. If this is correct, it would suggest the benefits of aligning what takes place within courses with the socially supportive dynamics of extracurricular cohort-based learning communities.

A deep understanding of mechanical waves is crucial for students to succeed in studying many advanced physics topics. Studies in existing literature have revealed that students often have widespread difficulties and misconceptions on wave propagation. This research develops and applies a conceptual framework model to examine students’ understanding of mechanical wave propagation from the knowledge integration perspective. Based on the existing literature and interview results, the conceptual framework model of wave propagation was developed and used to guide the development of a multiple-choice test that targets the assessment of knowledge integration in students’ understanding of wave propagation. The assessment was given to first-year college students enrolled in a calculus-based introductory physics course at a medium-ranking Chinese university. The results suggested that after traditional instruction the majority of the students only achieved intermediate level knowledge integration with fragmented knowledge structures and lacked a deep conceptual understanding of wave propagation. The conceptual framework and assessment outcomes were then used to inform the development of new instruction, which made explicit emphasis on teaching the central idea of the conceptual framework and making connections to the central idea within students’ knowledge structures. The effectiveness of the instruction was evaluated with the same pool of college students separated into an experimental group and a control group. Pre-post testing results suggested that the new instruction significantly improved students’ performance on questions that require an integrated knowledge structure, indicating advancement in knowledge integration and deep understanding.

Values affirmation exercises have been implemented in many contexts to combat stereotype threat in students from marginalized populations; the exercises are intended to fortify students by prompting them to self-affirm their values in short writing activities. Within the physics education research community, the style of intervention was underlined by a positive result from the University of Colorado Boulder; researchers were able to use the intervention to minimize the achievement gap between men and women in an introductory physics course. These results inspired a replication experiment in two physics courses at the University of Illinois in Urbana-Champaign, and this article provides some history and context of these interventions, describes our specific implementation, and reveals that we were unable to reproduce the positive results despite thorough attention to the details of the replication. Our findings suggest that the values affirmation exercises are not understood at a level where they should be considered a positive intervention to help marginalized populations.

In this study, we evaluate the validity of question 29 (Q.29) in the Force Concept Inventory (FCI), which requires an understanding of atmospheric pressure. At least in some Japanese physics classes, the rate of the correct answer to Q.29 is reduced between the pretest and post-test. To examine this deterioration of a student’s response, we analyzed 429 explanations written by 358 respondents about the force described in the question. Many learners, who were not aware of atmospheric force, chose the correct answer. On the other hand, many of the wrong respondents had learned about air pressure but did not understand it. As a result, postinstruction learners tended to have a worse rate of correct response. This made Q.29 less sensitive to a Japanese student’s ability. This characteristic feature of Q.29 is visually confirmed by a modified item response curve, which represents correlation between the response to one item and the total score of the other items.