Paul Kirschner
@paulkirschner.bsky.social
Educational realist, Diehard edu myth-buster, Grumpy Old Man, Emeritus Prof. Educational Psychology Open Universiteit, Guest Prof. Thomas More Uni (Belgium), owner kirschner-ED
Here's a great publication hoax perpetrated by Pascal Diago, possibly comparable to the Sokal hoax (look it up if you're not familiar with it), about pregnancy cravings for prime numbers!
retractionwatch.com/2026/01/30/g...
retractionwatch.com/2026/01/30/g...
Guest post: Forget pickles and ice cream. I published a fake paper on pregnancy cravings for prime numbers
Image generated by Google Gemini I had grown weary of the constant stream and abuse of spam invitations to submit manuscripts to journals and to attend fake conferences on the other side of the wor…
retractionwatch.com
February 15, 2026 at 8:52 AM
Here's a great publication hoax perpetrated by Pascal Diago, possibly comparable to the Sokal hoax (look it up if you're not familiar with it), about pregnancy cravings for prime numbers!
retractionwatch.com/2026/01/30/g...
retractionwatch.com/2026/01/30/g...
@ionica.mathstodon.xyz.ap.brid.gy Goedemorgen Ionica - Misschien vind je deze leuk! Pregnancy and craving for prime numbers
retractionwatch.com/2026/01/30/g...
retractionwatch.com/2026/01/30/g...
Guest post: Forget pickles and ice cream. I published a fake paper on pregnancy cravings for prime numbers
Image generated by Google Gemini I had grown weary of the constant stream and abuse of spam invitations to submit manuscripts to journals and to attend fake conferences on the other side of the wor…
retractionwatch.com
February 15, 2026 at 7:57 AM
@ionica.mathstodon.xyz.ap.brid.gy Goedemorgen Ionica - Misschien vind je deze leuk! Pregnancy and craving for prime numbers
retractionwatch.com/2026/01/30/g...
retractionwatch.com/2026/01/30/g...
Transfer-appropriate processing vertelt ons welk soort denken het leren moet omvatten. Contextual interference zorgt ervoor dat het denken ook daadwerkelijk plaatsvindt. Als leren er op dat moment wat slechter uitziet, is dat misschien wat we willen.
#EduSky
www.kirschnered.nl/2026/02/13/d...
#EduSky
www.kirschnered.nl/2026/02/13/d...
De Oefeningparadox - kirschner-ED
Transfer-appropriate processing en contextual interference zijn geen vijanden. TAP vertelt ons welk soort denken het leren moet omvatten. Contextual interference is een krachtige manier om ervoor te z...
www.kirschnered.nl
February 13, 2026 at 9:52 AM
Transfer-appropriate processing vertelt ons welk soort denken het leren moet omvatten. Contextual interference zorgt ervoor dat het denken ook daadwerkelijk plaatsvindt. Als leren er op dat moment wat slechter uitziet, is dat misschien wat we willen.
#EduSky
www.kirschnered.nl/2026/02/13/d...
#EduSky
www.kirschnered.nl/2026/02/13/d...
Transfer-appropriate processing vertelt ons welk soort denken het leren moet omvatten. Contextual interference zorgt dat het denken ook daadwerkelijk plaatsvindt. Als leren er op dat moment wat slechter uitziet, is dat misschien wel het duidelijkste teken dat het eindelijk doet wat we ervan willen.
De Oefeningparadox
Transfer-appropriate processing en contextual interference zijn geen vijanden. TAP vertelt ons welk soort denken het leren moet omvatten. Contextual interference is een krachtige manier om ervoor te zorgen dat het denken ook daadwerkelijk plaatsvindt. Als leren er op dat moment wat slechter uitziet, is dat misschien wel het duidelijkste teken dat het eindelijk doet wat we ervan willen.
www.kirschnered.nl
February 13, 2026 at 9:48 AM
Transfer-appropriate processing vertelt ons welk soort denken het leren moet omvatten. Contextual interference zorgt dat het denken ook daadwerkelijk plaatsvindt. Als leren er op dat moment wat slechter uitziet, is dat misschien wel het duidelijkste teken dat het eindelijk doet wat we ervan willen.
Transfer-appropriate processing tells us what kind of thinking learning must involve. Contextual interference is one powerful way to ensure that kind of thinking actually happens. If learning looks a little worse in the moment, that may be the clearest sign that we're doing it right.
The Paradox of Practice
Transfer-appropriate processing tells us what kind of thinking learning must involve. Contextual interference is one powerful way to ensure that kind of thinking actually happens. If learning looks a little worse in the moment, that may be the clearest sign that it’s finally doing what we want it to do.
www.kirschnered.nl
February 13, 2026 at 9:13 AM
Transfer-appropriate processing tells us what kind of thinking learning must involve. Contextual interference is one powerful way to ensure that kind of thinking actually happens. If learning looks a little worse in the moment, that may be the clearest sign that we're doing it right.
Transfer-appropriate processing tells us what kind of thinking learning must involve. Contextual interference is one powerful way to ensure that kind of thinking actually happens. #EduSky open.substack.com/pub/paulkirs...
The Paradox of Practice
What Should Align With What?
open.substack.com
February 13, 2026 at 8:54 AM
Transfer-appropriate processing tells us what kind of thinking learning must involve. Contextual interference is one powerful way to ensure that kind of thinking actually happens. #EduSky open.substack.com/pub/paulkirs...
Something has shifted within schools themselves. The values, habits, and cognitive skills that education once reliably supported are no longer being cultivated in the same way.
open.substack.com/pub/thedigit...
open.substack.com/pub/thedigit...
I Told the Senate Gen-Z is Less Cognately Capable – Here’s What the IQ Data Actually Shows
Something unusual is happening to student cognition. IQ scores are declining, and the skills most affected are the very ones schools were designed to build. Why?
open.substack.com
February 10, 2026 at 5:30 PM
Something has shifted within schools themselves. The values, habits, and cognitive skills that education once reliably supported are no longer being cultivated in the same way.
open.substack.com/pub/thedigit...
open.substack.com/pub/thedigit...
Almost finished writing a new book with the most amazing woman (@nsachdeva.bsky.social) on becoming an expert teacher.
February 10, 2026 at 7:35 AM
Almost finished writing a new book with the most amazing woman (@nsachdeva.bsky.social) on becoming an expert teacher.
Als het doel van lesgeven en onderwijs is dat leerlingen hun geleerde buiten het klaslokaal gebruiken, dan is dat ongemak de prijs die we moeten betalen
De Vergeten Wenselijke Moeilijkheid: Contextuele Interferentie
Als het doel van lesgeven en onderwijs is dat leerlingen hun geleerde buiten het klaslokaal gebruiken, dan is dat ongemak de prijs die we moeten betalen
www.kirschnered.nl
February 10, 2026 at 7:24 AM
Als het doel van lesgeven en onderwijs is dat leerlingen hun geleerde buiten het klaslokaal gebruiken, dan is dat ongemak de prijs die we moeten betalen
"this isn't an academic school" - A variation on the soft bigotry of low expectations by Caiti Wade open.substack.com/pub/thedisru...
"this isn't an academic school"
Why that claim doesn’t justify lower-quality instruction.
open.substack.com
February 10, 2026 at 7:06 AM
"this isn't an academic school" - A variation on the soft bigotry of low expectations by Caiti Wade open.substack.com/pub/thedisru...
If the goal of education is for students to use what they learn beyond the classroom, discomfort is the price we must pay. Contextual interference forces learners to determine what remains when everything else changes. #EduSky
www.kirschnered.nl/2026/02/09/a...
www.kirschnered.nl/2026/02/09/a...
Another Forgotten Desirable Difficulty: Contextual Interference - kirschner-ED
If the goal of teaching and education is for students to use what they learn beyond the classroom, that discomfort is the price we must pay. Contextual interference forces learners to determine what r...
www.kirschnered.nl
February 9, 2026 at 8:43 AM
If the goal of education is for students to use what they learn beyond the classroom, discomfort is the price we must pay. Contextual interference forces learners to determine what remains when everything else changes. #EduSky
www.kirschnered.nl/2026/02/09/a...
www.kirschnered.nl/2026/02/09/a...
If the goal is for students to use what they learn beyond the classroom, that discomfort is the price we must pay. Contextual interference forces learners to determine what remains when everything else changes. And that may be one of the most important things education can do.
Another Forgotten Desirable Difficulty: Contextual Interference
If the goal of teaching and education is for students to use what they learn beyond the classroom, that discomfort is the price we must pay. Contextual interference forces learners to determine what remains when everything else changes. And that may be one of the most important things education can do.
www.kirschnered.nl
February 9, 2026 at 8:33 AM
If the goal is for students to use what they learn beyond the classroom, that discomfort is the price we must pay. Contextual interference forces learners to determine what remains when everything else changes. And that may be one of the most important things education can do.
See Craig Barton's 3-Read Friday #100 open.substack.com/pub/eedi/p/3...
3-Read Friday #100
Failure, feedback and QLAs
open.substack.com
February 6, 2026 at 7:29 AM
See Craig Barton's 3-Read Friday #100 open.substack.com/pub/eedi/p/3...
Why Are Schools So Ugly?
Interesting way of looking at schools that I never considered. Thanks @rpondiscio.bsky.social for opening my eyes to this view.
open.substack.com/pub/thenext3...
Interesting way of looking at schools that I never considered. Thanks @rpondiscio.bsky.social for opening my eyes to this view.
open.substack.com/pub/thenext3...
Why Must Schools Be Ugly?
We used to build grand cathedrals of learning. Today’s schools look like warehouses or worse.
open.substack.com
February 5, 2026 at 6:40 PM
Why Are Schools So Ugly?
Interesting way of looking at schools that I never considered. Thanks @rpondiscio.bsky.social for opening my eyes to this view.
open.substack.com/pub/thenext3...
Interesting way of looking at schools that I never considered. Thanks @rpondiscio.bsky.social for opening my eyes to this view.
open.substack.com/pub/thenext3...
Tech-Free January
@dylankane.bsky.social does a digital detox. Here's how it went.
open.substack.com/pub/fivetwel...
@dylankane.bsky.social does a digital detox. Here's how it went.
open.substack.com/pub/fivetwel...
Tech-Free January
I cut technology out of my classroom for a month. Here's how it went.
open.substack.com
February 4, 2026 at 8:29 AM
Tech-Free January
@dylankane.bsky.social does a digital detox. Here's how it went.
open.substack.com/pub/fivetwel...
@dylankane.bsky.social does a digital detox. Here's how it went.
open.substack.com/pub/fivetwel...
Minder feedback — en vooral feedback die bewust verschuift van specifiek naar algemeen — is een stille maar krachtige manier om het denken terug te leggen waar het hoort: bij de leerling. En dat is precies waar onderwijs over zou moeten gaan.
De vergeten wenselijke moeilijkheid: Minder feedback
Minder feedback — en vooral feedback die bewust verschuift van specifiek naar algemeen — is een stille maar krachtige manier om het denken terug te leggen waar het hoort: bij de leerling. En dat is precies waar onderwijs over zou moeten gaan.
www.kirschnered.nl
February 2, 2026 at 6:57 AM
Minder feedback — en vooral feedback die bewust verschuift van specifiek naar algemeen — is een stille maar krachtige manier om het denken terug te leggen waar het hoort: bij de leerling. En dat is precies waar onderwijs over zou moeten gaan.
Reduced feedback, and especially feedback that’s deliberately faded from specific to general, is a quiet but powerful way to shift responsibility from the teacher’s correction to the learner’s cognition. And that’s exactly what education is supposed to do.
The Forgotten Desirable Difficulty – Reduced Feedback
Reduced feedback, and especially feedback that’s deliberately faded from specific to general, is a quiet but powerful way to shift responsibility from the teacher’s correction to the learner’s cognition. And that’s exactly what education is supposed to do.
www.kirschnered.nl
February 1, 2026 at 8:31 AM
Reduced feedback, and especially feedback that’s deliberately faded from specific to general, is a quiet but powerful way to shift responsibility from the teacher’s correction to the learner’s cognition. And that’s exactly what education is supposed to do.
Ik lees de zinnige woorden van @felienne.bsky.social over AI, onderwijs en toetsing maar verder lees ik dat ook een ex-schaatser en de CEO van een winkelbedrijf ook meent iets te moeten zeggen. Als je niets weet over iets, houd dan je mond!
wnl.tv/2026/01/26/h...
wnl.tv/2026/01/26/h...
Hoogleraar gaf geen cijfers meer vanwege AI: 'Ik hoef helemaal geen goed essay'
wnl.tv
January 27, 2026 at 10:48 PM
Ik lees de zinnige woorden van @felienne.bsky.social over AI, onderwijs en toetsing maar verder lees ik dat ook een ex-schaatser en de CEO van een winkelbedrijf ook meent iets te moeten zeggen. Als je niets weet over iets, houd dan je mond!
wnl.tv/2026/01/26/h...
wnl.tv/2026/01/26/h...
Why do I need to know this?
Great blog by @nsachdeva.bsky.social and @jim-hewitt.bsky.social
open.substack.com/pub/scienceo...
Great blog by @nsachdeva.bsky.social and @jim-hewitt.bsky.social
open.substack.com/pub/scienceo...
Why do I need to know this?
Why foundational knowledge matters
open.substack.com
January 27, 2026 at 6:57 PM
Why do I need to know this?
Great blog by @nsachdeva.bsky.social and @jim-hewitt.bsky.social
open.substack.com/pub/scienceo...
Great blog by @nsachdeva.bsky.social and @jim-hewitt.bsky.social
open.substack.com/pub/scienceo...
Het is zo ver! Onderwijsillusies, het nieuwe boek van @carlhendrick.substack.com, Jim Heal en mij is gedrukt en kan besteld worden! #EduSky
telos.vrijeboeken.com/book/9789083...
telos.vrijeboeken.com/book/9789083...
Onderwijsillusies (Paul Kirschner, Jim Heal, Carl Hendrick)
Veel van wat er gebeurt tijdens leren en lesgeven blijft voor het oog verborgen. Net als bij een overtuigende goocheltruc wijkt wat we denken te zien in de klas vaak sterk af van wat er werkelijk gebe...
telos.vrijeboeken.com
January 27, 2026 at 6:31 PM
Het is zo ver! Onderwijsillusies, het nieuwe boek van @carlhendrick.substack.com, Jim Heal en mij is gedrukt en kan besteld worden! #EduSky
telos.vrijeboeken.com/book/9789083...
telos.vrijeboeken.com/book/9789083...
My Twitter/X account has been hacked, and I can no longer access it. In other words, I'm no longer on Twitter/X and any new messages aren't from me. You can still follow me on BlueSky. Please spread the word here and also on Twitter/X.
January 25, 2026 at 6:04 PM
My Twitter/X account has been hacked, and I can no longer access it. In other words, I'm no longer on Twitter/X and any new messages aren't from me. You can still follow me on BlueSky. Please spread the word here and also on Twitter/X.
Mijn hemel. Hier kan je niet alleen naar mij luisteren maar mij ook zien! Mijn gesprek met @rkneyber.bsky.social gaat over onderwijsillusies; waar wat je ziet bij het lesgeven niet hetzelfde is als wat er eigenlijk gebeurt.
Spotify: open.spotify.com/episode/5907...
YouTube: youtu.be/BJjA58I3wCk
Spotify: open.spotify.com/episode/5907...
YouTube: youtu.be/BJjA58I3wCk
#63 Onderwijsillusies - met Paul Kirschner
Spotify video
open.spotify.com
January 20, 2026 at 5:51 PM
Mijn hemel. Hier kan je niet alleen naar mij luisteren maar mij ook zien! Mijn gesprek met @rkneyber.bsky.social gaat over onderwijsillusies; waar wat je ziet bij het lesgeven niet hetzelfde is als wat er eigenlijk gebeurt.
Spotify: open.spotify.com/episode/5907...
YouTube: youtu.be/BJjA58I3wCk
Spotify: open.spotify.com/episode/5907...
YouTube: youtu.be/BJjA58I3wCk
Is relying on AI cognitive “offloading” or “outsourcing”?
What an honour to be so positively cited by Natalie Wexler open.substack.com/pub/nataliew...
What an honour to be so positively cited by Natalie Wexler open.substack.com/pub/nataliew...
Is relying on AI cognitive “offloading” or “outsourcing”?
The terminology we use makes a difference.
open.substack.com
January 18, 2026 at 7:39 PM
Is relying on AI cognitive “offloading” or “outsourcing”?
What an honour to be so positively cited by Natalie Wexler open.substack.com/pub/nataliew...
What an honour to be so positively cited by Natalie Wexler open.substack.com/pub/nataliew...
H/T Larry ferlazzo for clueing me in to this @npr.org summary of a @brookings.edu report - premortem - on AI and education.
NPR: www.npr.org/2026/01/14/n...
Report: www.brookings.edu/articles/a-n...
NPR: www.npr.org/2026/01/14/n...
Report: www.brookings.edu/articles/a-n...
The risks of AI in schools outweigh the benefits, report says
A new report warns that AI poses a serious threat to children's cognitive development and emotional well-being.
www.npr.org
January 16, 2026 at 7:53 AM
H/T Larry ferlazzo for clueing me in to this @npr.org summary of a @brookings.edu report - premortem - on AI and education.
NPR: www.npr.org/2026/01/14/n...
Report: www.brookings.edu/articles/a-n...
NPR: www.npr.org/2026/01/14/n...
Report: www.brookings.edu/articles/a-n...