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David Coffey, PHD

@deltadc.bsky.social
280 followers 249 following 1.6K posts

GVSU Math Professor, MTBoS, Designing_Math_Adventures, Teaching Like Ted Lasso podcast — Thoughts are my own with no guarantee they're fully formed.

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David Coffey, PHD @deltadc.bsky.social · 22/09/2026
@deltadc.bsky.social @ottensam.bsky.social @ottenandrew.bsky.social @drwon.bsky.social After 1 hole of Round 93 (1920) Andy: 0 skins (1/0) Dave: 0 skins (-1) Paul: 0 skins (0/-1) Sam: 0 skins (0/-1) 2 skins on number 2
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David Coffey, PHD @deltadc.bsky.social · 04/09/2026
@deltadc.bsky.social @ottensam.bsky.social @ottenandrew.bsky.social @drwon.bsky.social After 1 hole of Round 92 (1902) Andy: 0 skins (0/-1) Dave: 0 skins (-1) Paul: 0 skins (-1/-2) Sam: 0 skins (-1/-2) 2 skins on number 2
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David Coffey, PHD @deltadc.bsky.social · 24/08/2026
Had a blast talking to @amidonplanet.bsky.social about @stephenking.bsky.social’s “On Writing” and how it might apply to teaching amidonplanet.com/episode149/
amidonplanet.com
Amidon Planet E149: What Stephen King Can Teach Us About the Craft of Teaching (w/ David Coffey) – Amidon Planet
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David Coffey, PHD @deltadc.bsky.social · 17/08/2026
@deltadc.bsky.social @ottensam.bsky.social @ottenandrew.bsky.social @drwon.bsky.social After 1 hole of Round 91 (1884) Andy: 0 skins (-1/-2) Dave: 0 skins (-1) Paul: 0 skins (0/-1) Sam: 0 skins (-1/-2) 2 skins on number 2
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John Golden @johngolden.bsky.social · 03/08/2026
Ted Lasso is back and so is Teaching Like Ted Lasso. Starting the season with the sage Francis Su @mathyawp.bsky.social @deltadc.bsky.social and I were wowed. www.youtube.com/watch?v=wUmS...
youtube.com
Defining Joy with Francis Su
YouTube video by Teaching Like Ted Lasso
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David Coffey, PHD @deltadc.bsky.social · 29/07/2026
@deltadc.bsky.social @ottensam.bsky.social @ottenandrew.bsky.social @drwon.bsky.social After 1 hole of Round 90 (1866) Andy: 0 skins (2/1) Dave: 0 skins (-1) Paul: 0 skins (1/0) Sam: 1 skin (-1/-2) 1 skin on number 2
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David Coffey, PHD @deltadc.bsky.social · 19/07/2026
Have you started your rewatch of seasons 1-3? #TeachingLikeTedLasso
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John Golden @johngolden.bsky.social · 18/07/2026
@deltadc.bsky.social @thenanoprobe.bsky.social #wcgw
political cartoon about multiple signs of the end times
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David Coffey, PHD @deltadc.bsky.social · 12/07/2026
@deltadc.bsky.social @ottensam.bsky.social @ottenandrew.bsky.social @drwon.bsky.social After 1 hole of Round 89 (1848) Andy: 1 skin (-1/-2) Dave: 0 skins (-1) Paul: 0 skins (0/-1) Sam: 0 skins (-1/-2) 2 skins on number 2
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David Coffey, PHD @deltadc.bsky.social · 24/06/2026
@deltadc.bsky.social @ottensam.bsky.social @ottenandrew.bsky.social @drwon.bsky.social After 1 hole of Round 88 (1830) Andy: 1 skin (-1/-2) Dave: 0 skins (-1) Paul: 0 skins (0/-1) Sam: 0 skins (0/-1) 1 skin on number 2
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David Coffey, PHD @deltadc.bsky.social · 06/06/2026
@deltadc.bsky.social @ottensam.bsky.social @ottenandrew.bsky.social @drwon.bsky.social After 1 hole of Round 87 (1812) Andy: 0 skins (1/-0) Dave: 0 skins (-1) Paul: 0 skins (0/-1) Sam: 0 skins (1/0) 2 skins on number 2
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David Coffey, PHD @deltadc.bsky.social · 31/05/2026
Those third shots helped. Wordle 1,807 3/6 ⬜⬜⬜⬜⬜ 🟨⬜⬜⬜⬜ 🟩🟩🟩🟩🟩
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David Coffey, PHD @deltadc.bsky.social · 19/05/2026
@deltadc.bsky.social @ottensam.bsky.social @ottenandrew.bsky.social @drwon.bsky.social After 1 hole of Round 86 (1794) Andy: 0 skins (-1/-2) Dave: 0 skins (-1) Paul: 0 skins (0/-1) Sam: 0 skins (-1/-2) 2 skins on number 2
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David Coffey, PHD @deltadc.bsky.social · 18/05/2026
Tanzania Study Abroad @gvsu.bsky.social
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John Golden @johngolden.bsky.social · 04/05/2026
#Maythe4th mathhombre.tumblr.com/post/7164057... One of @deltadc.bsky.social's fun ideas
mathhombre.tumblr.com
Star Wars Mathematical Practices
Dave Coffey’s idea inspired by TeacherPaulP’s nifty Jedi practices. Part 1 is here. There is another.
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David Coffey, PHD @deltadc.bsky.social · 01/05/2026
@deltadc.bsky.social @ottensam.bsky.social @ottenandrew.bsky.social @drwon.bsky.social After 1 hole of Round 85 (1776 Andy: 0 skins (1/0) Dave: 0 skins (-1) Paul: 0 skins (2/1) Sam: 1 skin (-1/-2) 1 skin on number 2
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David Coffey, PHD @deltadc.bsky.social · 30/04/2026
@ottensam.bsky.social I recently listened to your episode with Juli Dixon. Your thinking about storytelling really connects with some of the work I’ve been doing. I’d love to talk to you about it once I return from study abroad in June.
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David Coffey, PHD @deltadc.bsky.social · 25/04/2026
#runforthetrees #happylittle5K #bobross5K2026 with @literacygurl.bsky.social
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Joel Amidon @amidonplanet.bsky.social · 23/04/2026
Listen to the Teaching Math Teaching podcast w/ Dr. Brittany L. Marshall, Asst. Professor at San Diego State University, as we discuss her advice and expertise as a MTE and her work to disrupt traditional math logics that exclude students from intentionally-neglected communities. buff.ly/WNXUwYt
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David Coffey, PHD @deltadc.bsky.social · 13/04/2026
@deltadc.bsky.social @ottensam.bsky.social @ottenandrew.bsky.social @drwon.bsky.social After 1 hole of Round 84 (1758) Andy: 0 skins (0/-1) Dave: 0 skins (0) Paul: 0 skins (0/-1) Sam: 1 skin (-1/-2) 1 skin on number 2
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David Coffey, PHD @deltadc.bsky.social · 26/03/2026
@deltadc.bsky.social @ottensam.bsky.social @ottenandrew.bsky.social @drwon.bsky.social After 1 hole of Round 83 (1740) Andy: 0 skins (1/0) Dave: 0 skins (-1) Paul: 0 skins (0/-1) Sam: 1 skin (-1/-2) 1 skin on number 2
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David Coffey, PHD @deltadc.bsky.social · 08/03/2026
@deltadc.bsky.social @ottensam.bsky.social @ottenandrew.bsky.social @drwon.bsky.social After 1 hole of Round 82 (1722) Andy: 0 skins (-1/-2) Dave: 0 skins (-1) Paul: 0 skins (-1/-2)^ Sam: 0 skins (-1/-2) 2 skins on number 2
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Karen Campe @karencampe.bsky.social · 01/03/2026
YES thanks. It's nice & concise, gets students going on problem-solving when they "don't know what to do". Good general framework for math & more. I have a list of things I want my Ss to be thinking when they tackle problems, wrote about here: karendcampe.wordpress.com/2017/05/10/t... #iTeachMath
karendcampe.wordpress.com
That Voice In Your Head
When I work with students one-on-one, I get a unique window into their thinking.  Everyone has a test this week, including several students who are taking the AP Calculus exam.  As we are preparing…
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David Coffey, PHD @deltadc.bsky.social · 28/02/2026
Grateful to start #mathinaction playing with the #InnovatorsCompass to find the area of a trapezoid.
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John Golden @johngolden.bsky.social · 28/02/2026
Tara in side conversation recommends Algebra by Example www.serpinstitute.org/algebra-by-e... #mathinaction
serpinstitute.org
AlgebraByExample: Algebra Teaching Strategies | SERP
Target your students' common algebra misconceptions with Algebra by Example. We provide algebra 1 problem solving assignments that remediate repeated errors.
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David Coffey, PHD @deltadc.bsky.social · 26/02/2026
@ottensam.bsky.social shared part of your @hellomonamath.bsky.social episode with my MTH 329 students today. They’re going to see about using some of the nudges in their next lesson at Jenison Junior High.
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David Coffey, PHD @deltadc.bsky.social · 18/02/2026
@deltadc.bsky.social @ottensam.bsky.social @ottenandrew.bsky.social @drwon.bsky.social After 1 hole of Round 81 (1704) Andy: 0 skins (-1/-2) Dave: 0 skins (-1) Paul: 0 skins (0/-1) Sam: 0 skins (-1/-2) 2 skins on number 2
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David Coffey, PHD @deltadc.bsky.social · 31/01/2026
@deltadc.bsky.social @ottensam.bsky.social @ottenandrew.bsky.social @drwon.bsky.social After 1 hole of Round 80 (1686) Andy: 0 skins (2/1) Dave: 0 skins (0) Paul: 0 skins (0/-1) Sam: 0 skins (0/-1) 2 skins on number 2
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David Coffey, PHD @deltadc.bsky.social · 13/01/2026
@deltadc.bsky.social @ottensam.bsky.social @ottenandrew.bsky.social @drwon.bsky.social After 1 hole of Round 79 (1668) Andy: 0 skins (0/-1) Dave: 0 skins (-1) Paul: 0 skins (-1/-2) Sam: 0 skins (-1/-2) 2 skins on number 2
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David Coffey, PHD @deltadc.bsky.social · 12/01/2026
#MathFun for #MTH329 (with some AI help from CLAUDE)
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David Coffey, PHD @deltadc.bsky.social · 09/01/2026
Thanks to @stephenking.bsky.social for the poignant #TheLifeOfChuck and the bit about changing the way we teach math. It was great to hear @markhamillofficial.bsky.social give such an impassioned defense of the role of math in people’s lives.
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David Coffey, PHD @deltadc.bsky.social · 26/12/2025
@deltadc.bsky.social @ottensam.bsky.social @ottenandrew.bsky.social @drwon.bsky.social After 1 hole of Round 78 (1650) Andy: 0 skins (2/1) Dave: 1 skin (-3) Paul: 0 skins (0/-1) Sam: 0 skins (-1/-2) 1 skin on number 2
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David Coffey, PHD @deltadc.bsky.social · 22/12/2025
@ottensam.bsky.social This was not how I pictured it. #TheSecretOfSecrets
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David Coffey, PHD @deltadc.bsky.social · 16/12/2025
Elevators in Europe offer a great opportunity to create integer word problems.
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David Coffey, PHD @deltadc.bsky.social · 12/12/2025
ABCDEFGHIJKMNOPQRSTUVWXYZ #HolidaySongChallenge
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David Coffey, PHD @deltadc.bsky.social · 11/12/2025
@maththerapy.bsky.social ICYMI
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John Golden @johngolden.bsky.social · 10/12/2025
teaching like Ted Lasso is BACK! Talking to actual athletes on teaching/sports/Ted Lasso connections. Thanks so much to Jen and Morgan. www.youtube.com/watch?v=3SxK... #tltl @deltadc.bsky.social hasn't lost a step.
youtube.com
Diamond Lessons
YouTube video by Teaching Like Ted Lasso
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David Coffey, PHD @deltadc.bsky.social · 10/12/2025
New Episode Teaching Like Ted Lasso Diamond Lessons Video: youtu.be/3SxKB4oGMCM Audio: shows.acast.com/teaching-lik...
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David Coffey, PHD @deltadc.bsky.social · 08/12/2025
@deltadc.bsky.social @ottensam.bsky.social @ottenandrew.bsky.social @drwon.bsky.social After 1 hole of Round 77 (1632) Andy: 0 skins (-1/-2) Dave: 0 skins (-2) Paul: 0 skins (-1/-2) Sam: 0 skins (0/-1) 2 skins on number 2
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Samuel Otten @ottensam.bsky.social · 20/11/2025
Thanks to @amidonplanet.bsky.social for having us on the podcast. You can hear @zandrade.bsky.social, Amber Candela, and me thinking small and talking big! And I'm bracing myself to see if I get in trouble with #MathEd experts for some of my remarks at the end. creators.spotify.com/pod/profile/...
creators.spotify.com
E135: Practice-Driven Professional Development with Zandra De Araujo, Sam Otten, and Amber Candela by Amidon Planet
Learning to teach better with Dr. Zandra De Araujo (University of Florida), Sam Otten (University of Missouri), and Amber Candela (University of Missouri - St. Louis) as they share their work around i...
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David Coffey, PHD @deltadc.bsky.social · 24/11/2025
What are some of your responses to: Why is (-) x (-) = (+)? #mathchat #MTBOS
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David Coffey, PHD @deltadc.bsky.social · 21/11/2025
@ottensam.bsky.social I just finished listening to you on Amidon Planet. I’ll be sharing it widely.
media.tenor.com
Well Done GIF
ALT: Well Done GIF
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David Coffey, PHD @deltadc.bsky.social · 20/11/2025
@deltadc.bsky.social @ottensam.bsky.social @ottenandrew.bsky.social @drwon.bsky.social After 1 hole of Round 76 (1614) Andy: 0 skins (0/-1) Dave: 1 skin (-2) Paul: 0 skins (0/-1) Sam: 0 skins (0/-1) 1 skin on number 2
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Robert Kaplinsky @robertkaplinsky.com · 13/11/2025
Are you applying to speak at an upcoming NCTM conference? Then check out these tips to get your proposal accepted. robertkaplinsky.com/need-kn...
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David Coffey, PHD @deltadc.bsky.social · 12/11/2025
@themathguru.bsky.social loved the last Math Therapy podcast and the connections between teaching and sport. I plan to share it with my student teachers who are struggling to get their kids engaged. Have you watched Ted Lasso?
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NPR @npr.org · 04/11/2025
Math teachers at Cienega High School in Arizona are facing death threats and calls that they be fired after a Turning Point USA employee falsely accused them of wearing Halloween costumes mocking the assassination of Charlie Kirk.
n.pr
Arizona teachers' costumes weren't about Charlie Kirk. They're facing death threats anyway
Math teachers at Cienega High School in southern Arizona are facing death threats and calls that they be fired after a Turning Point USA employee falsely accused them of wearing Halloween costumes mocking the assassination of the organization’s co-founder, Charlie Kirk.
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David Coffey, PHD @deltadc.bsky.social · 03/11/2025
@kenwhite.bsky.social if you and Josh ever want to do Serious Trouble episode on the county level www.ottawanewsnetwork.org/epperson-cla...
ottawanewsnetwork.org
Epperson claims abuse, fear as HR lawyer disputes Moss's narrative of severance deal
Ex-board chair Joe Moss told commissioners last winter that the public release of Epperson’s resume and job description could legitimately ruin his future employment prospects, providing the grounds f...
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David Coffey, PHD @deltadc.bsky.social · 02/11/2025
@deltadc.bsky.social @ottensam.bsky.social @ottenandrew.bsky.social @drwon.bsky.social After 1 hole of Round 75 (1596) Andy: 0 skins (0/-1) Dave: 0 skins (-1) Paul: 1 skin (-2/-3) Sam: 0 skins (-1/-2) 1 skin on number 2
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Rick Steves @ricksteves.bsky.social · 15/10/2025
🧵: Last June, more than 5 million Americans joined #NoKings rallies across the country, protesting President Trump's authoritarianism. And this Saturday, with your help, it's going to be even bigger and better.
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David Coffey, PHD @deltadc.bsky.social · 15/10/2025
@deltadc.bsky.social @ottensam.bsky.social @ottenandrew.bsky.social @drwon.bsky.social After 1 hole of Round 74 (1578) Andy: 0 skins (0/-1) Dave: 0 skins (-1) Paul: 1 skin (-1/-2) Sam: 0 skins (0/-1) 1 skin on number 2
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