David Coffey, PHD
@deltadc.bsky.social
GVSU Math Professor, MTBoS, Designing_Math_Adventures, Teaching Like Ted Lasso podcast — Thoughts are my own with no guarantee they're fully formed.
Pinned
Reposted by David Coffey, PHD
Are you applying to speak at an upcoming NCTM conference? Then check out these tips to get your proposal accepted.
robertkaplinsky.com/need-kn...
robertkaplinsky.com/need-kn...
November 13, 2025 at 11:34 PM
Are you applying to speak at an upcoming NCTM conference? Then check out these tips to get your proposal accepted.
robertkaplinsky.com/need-kn...
robertkaplinsky.com/need-kn...
@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?
Have you watched Ted Lasso?
November 12, 2025 at 3:11 PM
@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?
Have you watched Ted Lasso?
Reposted by David Coffey, PHD
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.
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.
n.pr
November 4, 2025 at 4:12 PM
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.
@kenwhite.bsky.social if you and Josh ever want to do Serious Trouble episode on the county level
www.ottawanewsnetwork.org/epperson-cla...
www.ottawanewsnetwork.org/epperson-cla...
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...
www.ottawanewsnetwork.org
November 3, 2025 at 11:34 PM
@kenwhite.bsky.social if you and Josh ever want to do Serious Trouble episode on the county level
www.ottawanewsnetwork.org/epperson-cla...
www.ottawanewsnetwork.org/epperson-cla...
@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
@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
November 2, 2025 at 1:54 AM
@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
@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
Reposted by David Coffey, PHD
🧵:
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.
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.
October 15, 2025 at 1:52 AM
🧵:
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.
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.
@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
@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
October 15, 2025 at 5:54 PM
@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
@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
@ottensam.bsky.social what is the nudge you use associated with the 5 Practices?
September 30, 2025 at 4:40 PM
@ottensam.bsky.social what is the nudge you use associated with the 5 Practices?
@deltadc.bsky.social
@ottensam.bsky.social
@ottenandrew.bsky.social
@drwon.bsky.social
After one hole in Round 73
Andy: 0 skins (0/-1)
Dave: 0 skins (-1)
Paul: 0 skins (0/-1)
Sam: 0 skins (0/-1)
2 skins on number 2
@ottensam.bsky.social
@ottenandrew.bsky.social
@drwon.bsky.social
After one hole in Round 73
Andy: 0 skins (0/-1)
Dave: 0 skins (-1)
Paul: 0 skins (0/-1)
Sam: 0 skins (0/-1)
2 skins on number 2
September 27, 2025 at 1:17 AM
@deltadc.bsky.social
@ottensam.bsky.social
@ottenandrew.bsky.social
@drwon.bsky.social
After one hole in Round 73
Andy: 0 skins (0/-1)
Dave: 0 skins (-1)
Paul: 0 skins (0/-1)
Sam: 0 skins (0/-1)
2 skins on number 2
@ottensam.bsky.social
@ottenandrew.bsky.social
@drwon.bsky.social
After one hole in Round 73
Andy: 0 skins (0/-1)
Dave: 0 skins (-1)
Paul: 0 skins (0/-1)
Sam: 0 skins (0/-1)
2 skins on number 2
September 23, 2025 at 5:12 PM
@deltadc.bsky.social
@ottensam.bsky.social
@ottenandrew.bsky.social
@drwon.bsky.social
After one hole in Round 72
Andy: 0 skins (-1/-2)
Dave: 0 skins (-1)
Paul: 0 skins (0/-1)
Sam: 1 skin (-2/-3)
1 skin on number 2
@ottensam.bsky.social
@ottenandrew.bsky.social
@drwon.bsky.social
After one hole in Round 72
Andy: 0 skins (-1/-2)
Dave: 0 skins (-1)
Paul: 0 skins (0/-1)
Sam: 1 skin (-2/-3)
1 skin on number 2
September 9, 2025 at 1:35 AM
@deltadc.bsky.social
@ottensam.bsky.social
@ottenandrew.bsky.social
@drwon.bsky.social
After one hole in Round 72
Andy: 0 skins (-1/-2)
Dave: 0 skins (-1)
Paul: 0 skins (0/-1)
Sam: 1 skin (-2/-3)
1 skin on number 2
@ottensam.bsky.social
@ottenandrew.bsky.social
@drwon.bsky.social
After one hole in Round 72
Andy: 0 skins (-1/-2)
Dave: 0 skins (-1)
Paul: 0 skins (0/-1)
Sam: 1 skin (-2/-3)
1 skin on number 2
@deltadc.bsky.social
@ottensam.bsky.social
@ottenandrew.bsky.social
@drwon.bsky.social
After one hole in Round 71
Andy: 0 skins (1/0)
Dave: 0 skins (-1)
Paul: 0 skins (0/-1)
Sam: 0 skins (0/-1)
2 skins on number 2
@ottensam.bsky.social
@ottenandrew.bsky.social
@drwon.bsky.social
After one hole in Round 71
Andy: 0 skins (1/0)
Dave: 0 skins (-1)
Paul: 0 skins (0/-1)
Sam: 0 skins (0/-1)
2 skins on number 2
August 22, 2025 at 1:33 AM
@deltadc.bsky.social
@ottensam.bsky.social
@ottenandrew.bsky.social
@drwon.bsky.social
After one hole in Round 71
Andy: 0 skins (1/0)
Dave: 0 skins (-1)
Paul: 0 skins (0/-1)
Sam: 0 skins (0/-1)
2 skins on number 2
@ottensam.bsky.social
@ottenandrew.bsky.social
@drwon.bsky.social
After one hole in Round 71
Andy: 0 skins (1/0)
Dave: 0 skins (-1)
Paul: 0 skins (0/-1)
Sam: 0 skins (0/-1)
2 skins on number 2
If “thinking” in your class can be replaced with AI, is it really thinking?
August 18, 2025 at 2:48 PM
If “thinking” in your class can be replaced with AI, is it really thinking?
@deltadc.bsky.social
@ottensam.bsky.social
@ottenandrew.bsky.social
@drwon.bsky.social
After one hole in Round 70
Andy: 0 skins (-1/-2)
Dave: 0 skins (0)
Paul: 0 skins (0/-1)
Sam: 0 skins (-1/-2)
2 skins on number 2
@ottensam.bsky.social
@ottenandrew.bsky.social
@drwon.bsky.social
After one hole in Round 70
Andy: 0 skins (-1/-2)
Dave: 0 skins (0)
Paul: 0 skins (0/-1)
Sam: 0 skins (-1/-2)
2 skins on number 2
August 3, 2025 at 3:50 AM
@deltadc.bsky.social
@ottensam.bsky.social
@ottenandrew.bsky.social
@drwon.bsky.social
After one hole in Round 70
Andy: 0 skins (-1/-2)
Dave: 0 skins (0)
Paul: 0 skins (0/-1)
Sam: 0 skins (-1/-2)
2 skins on number 2
@ottensam.bsky.social
@ottenandrew.bsky.social
@drwon.bsky.social
After one hole in Round 70
Andy: 0 skins (-1/-2)
Dave: 0 skins (0)
Paul: 0 skins (0/-1)
Sam: 0 skins (-1/-2)
2 skins on number 2
July 24, 2025 at 2:08 AM
@deltadc.bsky.social
@ottensam.bsky.social
@ottenandrew.bsky.social
@drwon.bsky.social
After one hole in Round 69
Andy: 0 skins (2/1)
Dave: 0 skins (0)
Paul: 0 skins (0/-1)*
Sam: 0 skins (0/-1)
2 skins on number 2
@ottensam.bsky.social
@ottenandrew.bsky.social
@drwon.bsky.social
After one hole in Round 69
Andy: 0 skins (2/1)
Dave: 0 skins (0)
Paul: 0 skins (0/-1)*
Sam: 0 skins (0/-1)
2 skins on number 2
July 16, 2025 at 12:49 PM
@deltadc.bsky.social
@ottensam.bsky.social
@ottenandrew.bsky.social
@drwon.bsky.social
After one hole in Round 69
Andy: 0 skins (2/1)
Dave: 0 skins (0)
Paul: 0 skins (0/-1)*
Sam: 0 skins (0/-1)
2 skins on number 2
@ottensam.bsky.social
@ottenandrew.bsky.social
@drwon.bsky.social
After one hole in Round 69
Andy: 0 skins (2/1)
Dave: 0 skins (0)
Paul: 0 skins (0/-1)*
Sam: 0 skins (0/-1)
2 skins on number 2
@deltadc.bsky.social
@ottensam.bsky.social
@ottenandrew.bsky.social
@drwon.bsky.social
After one hole in Round 68
Andy: 0 skins (-1/-2)
Dave: 0 skins (-2)
Paul: 0 skins (0/-1)
Sam: 0 skins (-1/-2)
2 skins on number 2
@ottensam.bsky.social
@ottenandrew.bsky.social
@drwon.bsky.social
After one hole in Round 68
Andy: 0 skins (-1/-2)
Dave: 0 skins (-2)
Paul: 0 skins (0/-1)
Sam: 0 skins (-1/-2)
2 skins on number 2
June 28, 2025 at 2:36 AM
@deltadc.bsky.social
@ottensam.bsky.social
@ottenandrew.bsky.social
@drwon.bsky.social
After one hole in Round 68
Andy: 0 skins (-1/-2)
Dave: 0 skins (-2)
Paul: 0 skins (0/-1)
Sam: 0 skins (-1/-2)
2 skins on number 2
@ottensam.bsky.social
@ottenandrew.bsky.social
@drwon.bsky.social
After one hole in Round 68
Andy: 0 skins (-1/-2)
Dave: 0 skins (-2)
Paul: 0 skins (0/-1)
Sam: 0 skins (-1/-2)
2 skins on number 2
Upon my return from Study Abroad, my computer promptly crashed. All of my files were lost. While many are backed up, not all. It looks like, in some cases, I get to start over. #mindsetofabeginner
June 27, 2025 at 1:21 PM
Upon my return from Study Abroad, my computer promptly crashed. All of my files were lost. While many are backed up, not all. It looks like, in some cases, I get to start over. #mindsetofabeginner
Reposted by David Coffey, PHD
Every stroke a spiral. Every spiral a Fib. Van Gogh’s in on it.
June 12, 2025 at 1:09 PM
Every stroke a spiral. Every spiral a Fib. Van Gogh’s in on it.
@deltadc.bsky.social
@ottensam.bsky.social
@ottenandrew.bsky.social
@drwon.bsky.social
After one hole in Round 67
Andy: 0 skins (-1/-2)
Dave: 0 skins (-1)
Paul: 0 skins (0/-1)
Sam: 0 skins (-1/-2)
2 skins on number 2
@ottensam.bsky.social
@ottenandrew.bsky.social
@drwon.bsky.social
After one hole in Round 67
Andy: 0 skins (-1/-2)
Dave: 0 skins (-1)
Paul: 0 skins (0/-1)
Sam: 0 skins (-1/-2)
2 skins on number 2
June 10, 2025 at 1:08 AM
@deltadc.bsky.social
@ottensam.bsky.social
@ottenandrew.bsky.social
@drwon.bsky.social
After one hole in Round 67
Andy: 0 skins (-1/-2)
Dave: 0 skins (-1)
Paul: 0 skins (0/-1)
Sam: 0 skins (-1/-2)
2 skins on number 2
@ottensam.bsky.social
@ottenandrew.bsky.social
@drwon.bsky.social
After one hole in Round 67
Andy: 0 skins (-1/-2)
Dave: 0 skins (-1)
Paul: 0 skins (0/-1)
Sam: 0 skins (-1/-2)
2 skins on number 2
I’m cleaning up my computer and finding multiple copies of the same articles - evidence of which readings I value.
May 27, 2025 at 10:06 AM
I’m cleaning up my computer and finding multiple copies of the same articles - evidence of which readings I value.
@deltadc.bsky.social
@ottensam.bsky.social
@ottenandrew.bsky.social
@drwon.bsky.social
After one hole in Round 66
Andy: 0 skins (0/-1)
Dave: 0 skins (-1)
Paul: 0 skins (1/0)
Sam: 1 skin (-1/-2)
1 skin on number 2
@ottensam.bsky.social
@ottenandrew.bsky.social
@drwon.bsky.social
After one hole in Round 66
Andy: 0 skins (0/-1)
Dave: 0 skins (-1)
Paul: 0 skins (1/0)
Sam: 1 skin (-1/-2)
1 skin on number 2
May 23, 2025 at 7:35 AM
@deltadc.bsky.social
@ottensam.bsky.social
@ottenandrew.bsky.social
@drwon.bsky.social
After one hole in Round 66
Andy: 0 skins (0/-1)
Dave: 0 skins (-1)
Paul: 0 skins (1/0)
Sam: 1 skin (-1/-2)
1 skin on number 2
@ottensam.bsky.social
@ottenandrew.bsky.social
@drwon.bsky.social
After one hole in Round 66
Andy: 0 skins (0/-1)
Dave: 0 skins (-1)
Paul: 0 skins (1/0)
Sam: 1 skin (-1/-2)
1 skin on number 2
Using #InnovatorsCompass to begin the process of designing learning adventures in our Tanzanian classrooms.
May 10, 2025 at 5:31 AM
Using #InnovatorsCompass to begin the process of designing learning adventures in our Tanzanian classrooms.
Parabolas in the wild
May 6, 2025 at 4:50 PM
Parabolas in the wild