United States

Building a positive and inclusive cohort feel among students of physics is challenging when their first postsecondary experience is in large lecture-style courses. To this end, this poster will describe the range of different communication technologies and tools that my Department has used to increase our formal and informal communication with undergraduate students of physics at different stages of their degree programs. Comparisons focus on three aspects: the instructor/administrator’s intended goal for usage, the actual usage patterns by students during (pre-COVID) in-person learning, and the actual usage patterns by students during (COVID-necessitated) remote learning.

AAPT SM 21

Beyond email: effective communication strategies to engage students of physics

postsecondary

technology

inclusion

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poster

Arkansas is primarily an agricultural economy with billions of dollars accrued through crop production. Because of this, agriculture should be represented in Arkansas classrooms and in national education as agronomy requires a broad range of STEM trained graduates. Teachers can introduce basic physics concepts such as fluid flow and thermodynamics using real world agricultural scenarios and in-class demonstrations such as measuring water amount in soil, to demonstrating the effect of water evaporation in irrigation systems (and the resultant cost of such). As a cross cutting concept, soybeans are cultivated to be used in the implementation of this lesson to determine water evaporation which includes discussion of soybean transpiration. The concepts and examples presented can easily be modified for any science classroom using locally used crops.

Teaching physics using agricultural concepts.

General, conceptual, and “Physics First” instructors are often isolated and left to either adapt advanced curricula or piece together resources. PEER Physics provides a robust NGSS-aligned curriculum and a community for teachers to connect and learn about implementing science and engineering practices. Students are immersed into the discipline of physics through anchoring phenomena that drive their curiosity while they make and defend claims. This evidence-based reasoning is supplemented with argumentation and consensus building where the whole class generates a set of broadly-applicable principles. Materials have been carefully developed and tested with input from practicing teachers, physics content and pedagogy experts, and instructional coaches. This unique collaborative effort has led to a physics program that is unlike anything else available for high school general and conceptual physics. In this presentation, we will share about our newly released open source Waves chapter, and the accompanying phenomenon, engineering design challenge, and 3D-assessment.


PEER Physics: Open Source Waves Unit

I have applied the syllabus of a First Year University Physics course toward Instructing High School Juniors in AP Physics C Mechanics and E&M (Calculus based). As these students are enrolled in Calculus I concurrently (have not yet fulfilled the pre-requisite), I must creatively teach them concepts and applications of differentiation, integration, and differential equations "on the fly." Rather than struggling, the students consistently rise to the occasion and attain success in understanding and mastering advanced topics not normally expected of High School students (e.g., I use imaginary exponentials to help them solve SHO problems with damping). I will present anecdotal evidence from Physics Faculty at the University associated with the High School that the students are not only superbly prepared, they "trounce the curve" and are encouraged to skip First Year Physics. I will also present AP Score distributions and Student evidence as to their satisfaction and enhanced confidence.

Pushing The Limit: Students Rising To The Challenge

Special Relativity is a critical issue in the teaching of physics in the Italian high school.
The theory does not show daily examples, thus preventing the possibility of structuring simply laboratory's experiences.

In this talk, we present the results of an experimentation regarding the teaching of Special Relativity.
The main innovation of our project consists of a mechanical instrument we use to explain Special Relativity. This tool is a big spacetime diagram in which each event on the grid can be moved along certain hyperbolas-shaped tracks, that represent the surface of constant interval.
Thus, one physically and mechanically performs Lorentz’s transformation by hands, exploring the effects of a change of the reference frame. Teachers and students can deal “by eye” with unusual phenomena as the loss of simultaneity, times dilation, lengths contraction, relativistic addition of velocities and Doppler’s effect which are the main topics of interest for High Schools.

Seeing Reality Through Einstein's Eyes: A Proposal for Special Relativity

Secondary school physics teachers often teach out-of-field, out-of-certification and are often the only physics teacher in their school. As a result, physics teachers lack support in developing pedagogical content knowledge. The Physics of Living Systems - Teacher (PoLS-T) network was established in 2020 to address salient challenges in secondary physics classrooms, within a community of practice of high school teachers and education researchers. In the year since its founding, the PoLS-T network has met on a monthly basis to discuss the needs of physics teachers, focusing on existing online resources they could leverage, and disseminating evidence -based best teaching practices. Due to the network’s membership, composed of both U.S.-based and international physics educators, the network has been a rich action-oriented community of practice. In our presentation, we will share key insights and future plans for the network, including the Monthly Speaker Series and other events.

The Physics of Living Systems Teachers (PoLS-T) Network

Research-based tutorials---worksheets that guide students in constructing physics knowledge for themselves---have repeatedly proven to be a highly effective complement to lectures in physics courses. Our collaboration has created a collection of tutorials for middle-division quantum mechanics (QM), which has been successfully adopted by QM instructors nationwide. However, many instructors lack the resources and/or institutional support to run tutorials; it can be difficult to find time, space, and personnel to facilitate these activities. As an alternative, we are developing online versions of our QM tutorials that students can work through without instructor facilitation. We are designing the online tutorials to guide students through the worksheets in ways that encourage sense-making and allow students to progress without revealing the answers. For example, they include adaptive guidance pathways based on students’ responses. Early beta versions are available, for free, at acephysics.net.

Online Tutorials for Middle-Division Quantum with Adaptive Guidance

In a prior study, we investigated graduate student reasoning on a set of entropy-related conceptual tasks in a think-aloud format. The tasks involved entropy from microscopic and macroscopic perspectives, ideal gases, and a novel context involving a system with a dynamic string. In the current study, we conducted interviews with undergraduates using the same questionnaire. Most students were interviewed during the second half of their upper-division Thermal Physics course at the University of Colorado Boulder while two were upper-division undergraduates from other institutions with strong physics programs. We analyze the responses of the undergraduates to a section of the interview involving a novel system of a dynamic string waving in a bath of water and discuss the similarities and differences between the undergraduate and graduate students' responses. The responses from the two populations share many similarities with a few noteworthy exceptions. The undergraduates generally did not produce multiple macrostate classifications in the novel system, and some expressed a concern with what they perceived to be an infinite number of microstates---and thus infinite entropy---which was not a concern among the graduate students.

Comparing undergraduate and graduate student reasoning on conceptual entropy questionnaire

We report on a three-year grant aimed at improving the oral communication skills of STEM graduate students. By teaching storytelling techniques, playing improv games and recording podcasts, eight STEM storytellers per cohort took a year-long class to develop their skills as speakers. Funded by the NSF Innovations in Graduate Education program, (#1735124) we used formative and summative assessments for determining students’ levels of anxiety before giving talks, apprehension for public speaking, and we calculated how much jargon each student employed while discussing their thesis work for a general audience. We collected data on all three cohorts, with 22 of the 24 completing a full year of coursework related to communication skills. Quantitative and qualitative results will be shared in this poster, demonstrating that the publicly available STEM Storytellers curriculum is a powerful method for improving the oral communication skills of STEM graduate students.

Improving the Communication Skills of STEM Graduate Students

We discuss an investigation of student difficulties with the representation in which a Hermitian operator corresponding to a physical observable (e.g., the Hamiltonian operator corresponding to energy) is diagonal in the context of degenerate perturbation theory involving the Zeeman effect in the hydrogen atom. This investigation was carried out in advanced quantum mechanics courses by administering written free-response and multiple-choice questions and conducting individual interviews with students. We discuss the common student difficulties related to these concepts, knowledge of which can be useful for developing research-validated learning tools.

Student difficulties with diagonal operators for degenerate perturbation theory

Students from two nearby high schools designed and configured a QuarkNet cosmic ray muon detectors to measure any changes in cosmic ray flux due to an inserted 0.1T magnetic field. The design included two separate methods to measure differences in muon path. We hypothesized that the neodymium magnetic field would vary muon flux in an offset detector array. Results will be presented.

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Beyond email: effective communication strategies to engage students of physics

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Teaching physics using agricultural concepts.

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