Congratulations to the 2025 #PhysTEC National Teacher of the Year, Deborah Armstrong! Deborah teaches at Mineola High School. Each year, one national winner and several local winners are recognized for their exemplary work as high school physics teachers. ow.ly/qPEh50Xx1mP #ITeachPhysics

Poster presentation submissions are being accepted for #AAPTWM26. The submission deadline is November 14th. ow.ly/kXao50X0aF5 #AAPTConference #AAPTMeeting #ITeachPhysics #PhysicsEducation #PhysicsTeachers

I write a lot of letters of rec for students that were juniors in my AP Physics class. So far, 28 students with 35 letters submitted, 6 to go by 11/1, 4 at a later date. There will be just as many current juniors asking for summer program letters. Necessary but exhausting process full of privilege.

Join us for the next AAPT Virtual Coffee Hour on "An Evening with Paul Hewitt" with presenters Paul Hewitt and John Suchocki, Conceptual Academy on November 18 at 7:30 pm EST. This event is open to the public. ow.ly/fJfn50XbSZy #AAPTCoffeeHour #PhysicsEducation #ITeachPhysics

🧪🎢Each year I do a pumpkin bungee drop in AP C Mech. Groups are randomly given a spring length? Spring constant, Pumpkin height and mass. They have to determine if it smashes or not and find either max speed if it survives or impact speed. I want to add graph sketching this year. Ideas so far: 1/2

Register for #AAPTWM26 and take advantage of Early Bird registration rates! Early Bird rates end after November 14th. ow.ly/32Qt50X1LRM #AAPTConference #AAPTMeeting #ITeachPhysics

Join us for the next AAPT Virtual Coffee Hour on "An Evening with Paul Hewitt" with presenters Paul Hewitt and John Suchocki, Conceptual Academy on November 18 at 7:30 pm EST. This event is open to the public. ow.ly/E25v50XbSZA #AAPTCoffeeHour #PhysicsEducation #ITeachPhysics

Targeted advertising showed me an ad for a Chemistry Advent Calendar with cute ornaments each day. I am disappointed but not surprised there wasn't a Physics one. What would you put in such a countdown type calendar for Physics? I'm thinking small toy car, flying pig, tennis ball, rocket, etc.🎢🧪

#Teach180 blog post about how questions can grow into activities that can keep growing & getting better. This activity on positive/negative work started as a warm-up question but is now a nearly full day activity I added to again for next year. 🎢🧪 breebarnettdreyfuss.blogspot.com/2025/10/grow...

#Teach180 blog post explaining my day 1 Newton's Laws explorations, except we don't call it that yet. ✅️tennis balls ✅️bowling balls ✅️rubber mallet 🎢🧪 breebarnettdreyfuss.blogspot.com/2025/10/intr...

Vital piece of physics equipment for AP Physics to learn about forms on an object in UCM on a banked turn. 🎢🧪

Excited to see my @ncnaapt.bsky.social friends in about a month! 🧪🎢

Poster submissions are being accepted for #AAPTWM26. The submission deadline is November 3rd. ow.ly/kXao50X0aF5 #AAPTConference #AAPTMeeting #ITeachPhysics #PhysicsEducation #PhysicsTeachers

Fabulous discussion of friction, just shared with my AP C kids and hope they have time to watch it before they start their forces test today! 🧪🎢

Forgot to share the Bear Bosun Chair I made last week. I had rushed something last year and always meant to redo it. When AP C students did the '86 FRQ about it, I made this. Simple wood frame as the bear "seat," rubber bands to hold it, eye hooks and wire at the top, binder clip at hands. 🧪🎢

@fnoschese.bsky.social do you know how to show students if their @desmos.com card sorts match the key? I feel like I've seen that on a card sort before but don't know how.

Days 15 and 16 of #teach180: It's OK to have boring days, and we can learn a lot on those days. lerner180.posthaven.com/days-15-and-... #iteachphysics

#teach180 blog post about the "salami problem" I do in AP C about equilibrium & forces. It's built up as a big memorable demo. I have done this same type of problem, based on a Hewitt Drew-it, in our college prep Physics as well, sans salami. 🎢🧪 breebarnettdreyfuss.blogspot.com/2025/09/sala...

Join us for an AAPT Virtual Coffee Hour on "Teaching Physics for the First Time" with presenter Jan Mader, AAPT/PTRA on September 23rd at 7:30 pm ET. This event is open to the public. ow.ly/F92O50WJRbU #AAPTCoffeeHour #PhysicsEducation #ITeachPhysics

#Teach180 blog post about the brick, balloon and block student experiment I do to illustrate changes in contact forces. Its based on Darek Dewey's set-up: breebarnettdreyfuss.blogspot.com/2025/09/bloc...

I want students to collect data of accelerating motion (not just constant/ave v). I want them to use equations to calculate other values and model the motion with graphs. I'm thinking driving because walking/running won't give final v. No tracking motion software. Anyone done a project like this?🧪🎢

#Teach180 blog post explaining the two Speed shifters lab: breebarnettdreyfuss.blogspot.com/2025/08/two-... 🧪🎢

The 2025 High School Physics Photo Contest Top 100 entries were displayed and judged during the 2025 Summer Meeting in Washington, DC. See the Top 100 photos & Top Finishers here ➡ ow.ly/wMVO50WOh08 #PhysicsEducation #PhysicsTeachers #HSPhotoContest2025 #ITeachPhysics #AAPTSM25

@rogerfreedman.bsky.social your epic online posts made it to our Physics Club flyers.

AAPT Members: Are you taking advantage of your 25 free article downloads per year from any AIP Publishing articles? Simply sign in with your Scitation username and password, and start downloading today! pubs.aip.org/aip #aaptmemberbenefits #ITeachPhysics #PhysicsEducation

Did NOT need an unscheduled evacuation with no information as to WHY, TODAY. 😤

#Teach180 blog (3rd post) about how I did name cards this year. It's the little things you try that help a classroom run smoothly. You have to try new things, tweak and try again if it doesn't. Each room and each year is different. breebarnettdreyfuss.blogspot.com/2025/08/name...

@lernerphysics.bsky.social reminded me how great daily reflection can be for teaching when he facilitated the Q&A after my award. I hope to move to a blog format but #Teach180 posts here will do for a start! 🧪🎢

Day 4 of #AAPTSM25: Plenary II, Bree Barnett Dreyfuss receives the Zitzewitz Award for Excellence in K-12 Teaching. #AAPTConference #AAPTMeeting

Very glad to get out and get some vitamin D on a walk with Bryn and see some sites at #aaptsm25 today

Excited for the #aaptsm25 5k Fun Run/Walk in DC! You can still register online and join us Tuesday morning at 6am. @aapthq.bsky.social

Another workshop by David Rakestraw and Dan Burns @the-physics-well.net for the @aapthq.bsky.social summer meeting in D.C. on Sunday afternoon. #aaptsm25 #ITeachPhysics 🎢🧪

There are lots of interesting workshops at #AAPTSM25 that still have some seats! Join David Rakestraw of LLNL and Dan Burns in this @phyphox.org based workshop on Sunday morning. 🧪🎢 @aapthq.bsky.social

I am! Come to one (all?) of my workshops. @ncnaapt.bsky.social @aapthq.bsky.social #ITeachPhysics

Who is going to #AAPTSM25 in DC?? #ITeachPhysics @aapthq.bsky.social 🧪🎢

Register for the 2025 PhysTEC two-day Workshop happening on August 2-3! Learn more and register today! ow.ly/87eo50VHnJc #AAPTSM25 #PhysTEC2025 #PhysicsEducation #ITeachPhysics

#iteachphysics any ideas what this is? Some kind of prism? Its tall. 🎢🧪

How do you teach current density and drift velocity? I usually explain it, lots of visuals, but at the end of the day, it just seems like a complicated equation with no meaning to AP Physics C students. They struggle with why they should care. #ITeachPhysics 🧪🎢

AAPT is accepting presentations for #AAPTSM25! Learn more and submit a presentation today! Submission deadline is March 14th. ow.ly/juTA50UZIMf #AAPTConference #AAPTMeeting #CallforPresentations #ITeachPhysics #research #teaching

Two foil wrapped pieces of wood with pieces of foam in between to make a giant capacitor model. I think I want to drill a hole in the middle so I can mount it to a ring stand but then I'll want to tilt it to make a non parallel one... #ITeachPhysics 🧪🎢

Today is the deadline to register for the 2025 PHYSICSBOWL! Visit ➡ ow.ly/kSa850UqbpX to learn more. Register now! #PhysicsBowl2025 #PhysicsEducation #PhysicsTeachers #Physics

Years ago I was on a Let's Code Physics podcast about how I try to portray the scale of the number of electrons in a Coulomb to my students. The one time building something for a demo wasn't the answer. 😅 @wbrianlane.bsky.social #ITeachPhysics 🎢🧪 www.youtube.com/watch?v=74KH...

AAPT is now accepting presentations for #AAPTSM25! Learn more and submit a presentation today! Submission deadline is March 14th. ow.ly/juTA50UZIMf #AAPTConference #AAPTMeeting #CallforPresentations #ITeachPhysics #research #teaching

This one: www.bonfire.com/smash-partic...

I made my own grading stamps, they might be a little small though! "Consistent with earlier incorrect work and/or answers" "Awesome physics thinking shown here" #ITeachPhysics 🎢🧪

Knitting hats on my knitting machine led to some charge build up apparently. This was after the first time or two I couldn't even get the cut end to go into the tube at all. #ITeachPhysics 🎢🧪

Important AP Physics C knowledge getting dropped as we learn about torsional pendulums. #ITeachPhysics

Making physical pendulums for AP Physics trying to make productive use of nervous energy. #ITeachPhysics 🎢🧪

When students are befuddled by a rotation problem, I model it. This one has gotten better over the years but it's always this old beat up globe for our spinning sphere. It's easy for them to see the difference in angular velocity though and that the string doesn't slip. #ITeachPhysics 🧪🎢

Another PTRA fun make-and-take at #AAPTWM25 was this little top out of a marble, dowel and wooden wheel, all hot glued together. It actually spins for quite a while!