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Circuit Design Challenge Lab

April 20, 2018

Last week students were given three resistors and had to design a circuit to draw 320 mW when connected across 8V , and then predict the power output at each resistor, and then take measurements using ammeters and voltmeters to compare to.

These cut outs helped a ton

April 19, 2018

Stumbling toward the finish line …

April 18, 2018

I’m still doing ok, but it’s been harder and harder this semester to be my best at teaching, partially because I’m just so physically, cognitively and emotionally tired. Some days I feel fine, but I’m also struggling to make decisions effectively, especially in real time. Even with just speaking, I’m having bouts of aphasia that come and go. I’ve said this before, but I find it hard to be focused on both curriculum and instruction. For me instruction requires careful attention to ongoing events. When my mind is spending too much energy keeping track of curricular aspects, there is just not sufficient resources allocated to attend to what’s going on. Furthermore, so much time spent organizing curriculum leaves with too little time to think carefully through execution and to rehearse key points and transitions. I like to rehearse as much as I can, honestly, and I’m getting very little rehearsal time.

Finally, I often spend a lot of time outside of class thinking about individual students and whole class dynamics. I email students who have missed class. I notice and strategize about groups that have got into a rut. I think crucially about specific issues of motivation, confidence, engagement, and plan accordingly. Many of their issues get put on the back burner when there’s too much curricular stuff I’m minding to.

Finally, some of it is emotional fatigue. I care about students, but sustained acts of caring require some emotional well to draw from. I’m not quite finding enough ways to fill my bucket as quickly as it gets depleted. Because of this, I’m prone to disengage a bit in class. While I would always circulate around during clicker questions, I’ve noticed more and more I hang back. It’s like there’s an activation barrier I can’t quite always get over.

This semester will soon be over, and I will take some time to recharge and refocus. I’ll also be attending a few conferences this summer, so I’m hoping to make the most of those to reconnect with colleagues and friend, and to re-energize.

Losing steam, but otherwise ok

April 4, 2018

I’m definitely losing steam at the end of the semester here. I don’t so much feel burnout like I did at the beginning of the academic year, which is good, but I do feel more fatigued. My brain feels so so ready to stop thinking and get into some routine work. I look forward to the end of semester when I can get busy doing work around the house.

This summer I’ll be attending AAPT and PERC, which will be nice, because it’s been 3 years since I last attended. It will be nice to see colleagues and friends, and also to just let research ideas wash over me. I’ll still need to spend a decent fraction of my summer revising curriculum, but it will be nice to balance curriculum and research, not curriculum and teaching.

Various Images from Physics II

April 2, 2018

Some images from Ray Optics

March 6, 2018

Magnified Image of Filament

Converging Lens with Ray Table

Plane Mirror and Ray Table

Diffuse Reflection


Point source rays

Plane Mirror (parallel rays)

Virtual Image through Converging Lens

Plane Mirror Image

Diagramming Standing Waves

February 14, 2018