Post-lecture emails to students

A few days ago, I came across the following blog post by Dr. Brokk Toggerson, a physics lecturer from the University of Massachusetts, Amherst: 

"Reflections on Physics 132 Spring ’22 Part II – Something that has been evolving for a few semesters: After-class broadcasts"

This post really resonated with me, and I am glad to share it on my own Physics Education blog along with a few comments of mine. I started following a similar approach back when I was a teaching assistant for various physics, mathematics and computer science courses during my undergraduate and graduate studies, and to this day I am strongly convinced that this is a great way to enhance the students' learning experience. Personally, I think that this approach is applicable both for large enrollment courses (such as Dr. Toggerson's 600-student lecture) and smaller classes.      

"Any questions? No? Great, let's move on." -- Wait time and awkward silence in the classroom

I have no doubt that every educator is familiar with the following situation:

 "Are there any questions?"

"What is a harmonic oscillator?"

 "What is the difference between a metal and an insulator?"

etc.

We ask an (open-ended) question to engage our students and start looking around at their faces in the lecture hall or classroom. Most students seem to look down at their desk or simply stare into space. After what feels like eternity, we decide to break the awkward silence and answer the question ourselves -- or, in the case of the "Are there any questions?"-question, we would say something along the line of "No? Great, let's move on to the next chapter." 

Media hypes affecting physics teaching and a crisis in particle physics?

Today, I would like to share with the readers two interesting, physics education-related topics that have attracted my interest over the course of the last few days. 

Teaching and communicating magnetism

This is a reprint of an article that I have written for the IEEE Magnetics Society Newsletter (November 2022 issue, edited by Jia Yan Law). Please do check out the Newsletter if you are interested in contents related to magnetism, technology, activities of the Magnetics Society as well as announcements of conferences, awards and events.

Nowadays, the majority of people are likely to encounter magnetism in their everyday lives, be it by simply seeing the magnets on their refrigerator door, using magnetized screwdrivers, navigating with a compass, swiping a credit card, undergoing an MRI scan, or saving an image file on their computer's magnetic hard drive. Of course, in the IEEE Magnetics Society, we have a much closer and more professional relationship with the world of magnetism, for instance, by conducting fundamental research or driving the evolution of magnetism-based technologies. This places us in an optimal situation to teaching and communication outreach in the field of magnetism!

12 questions every physics department should ask themselves

Here are 12 questions that every physics department should ask themselves in regard to teaching and the educational curriculum: 

Thoughts and conversations on teaching during a scientific conference

Last week, I attended the annual conference on Magnetism and Magnetic Materials (MMM) which took place in Minneapolis (United States). While the central topics of this conference were all related to cutting-edge research in the field of magnetism, I still had the chance to think and talk about teaching physics and materials science. Therefore, in today’s blogpost, I would like to touch on a few of my thoughts and conversations.

Is there a need for teaching faculty in Germany?

In the United States and several other countries, it is common practice that introductory lectures are being held by teaching faculty, i.e., lecturers and teaching professors. In physics departments, this includes classes such as "Introduction to Experimental Physics" (classical mechanics, electricity and magnetism, thermodynamics, optics). Higher-level classes as well as electives, however, are often taught by "regular" faculty who only devote a certain fraction of their working hours to teaching while also being involved in research and service activities. By contrast, in Germany also the introductory classes are taught by the aforementioned "regular" professors, and typically no additional teaching faculty are hired by the universities. Obviously, there are advantages and disadvantages to each of these two distinct approaches. For example, hiring teaching faculty leads to additional costs for the university, but on the other hand one might argue that, on average, their higher enthusiasm for teaching and the fact that they solely focus on their classes leads to a greater success in the students' learning experience. Unlike "regular" professors who may regard teaching as an obligation, teaching faculty usually have a strong passion for teaching and do not have many other duties that would distract them from preparing their classes. 

Teaching advice of the week: Get to know your students

Today, I present this week's teaching advice: Get to know your students.

A common and helpful advice on giving a presentation (for example, on scientific conferences) is to "know your audience". The same applies when teaching a class. What kind of students are attending your lecture? What is their motivation, expectation and background? Try to build a relationship with the students, ideally in the beginning of the semester. You may feel confident about the contents of the class after teaching it for several years, but you might need to adapt your teaching style every time because your audience changes every time. 

The syllabus

The syllabus. Americans will probably know what I am talking about, but how about our readers from Germany? Do you know what a syllabus is? And why it is useful? 

Thoughts on a new class named "The Physics of Modern Information Technology"

Currently, I am thinking about a new (elective) class on the physics of modern information technology for both B.Sc. and M.Sc. students that I would like to teach in the near future.  

Technically, this idea isn't entirely new, since, for example, there exists a book and a related class at the Massachusetts Institute of Technology (MIT) by Professor Neil Gershenfeld. However, the concept of my own proposed course is quite a bit different with a stronger focus on magnetic recording and spintronics, new devices in information technology (e.g., resistive random access memories and phase change memories) and alternative computing architectures (i.e., non-von Neumann computers based on neuromorphic computing, probabilistic computing, etc.). I also like the concept of the "Information Storage and Spintronics" class taught by Professor Atsufumi Hirohata at the University of York.

Does (condensed matter) physics have an image problem?

Fewer and fewer people in Germany choose physics as their major at a university. 

This is not just hearsay, but it is actually based on a statistical evaluation by the German Society of Physics (sorry, the document is in German only, but you can clearly see the trend in Fig. 1). Also, there are fewer people getting a B.Sc., M.Sc. and PhD degree.  

Here are some thoughts on the issue whether physics -- in particular, condensed matter physics, because that is the very discipline I am working in -- has an image problem and why physics as a subject may be less appealing to people nowadays than it used to be some years and decades ago. Certainly, I do not have a simple solution for this problem, but perhaps some of the following points could be important factors in this context.