Cassandra Potier Watkins
@cassandrapw.bsky.social
Researcher at Collège de France | President of Excello www.excellolab.org
Author of Learn & Play: The American Phonics Reader 📚
Studying how children learn in school —
Sharing science-backed insights on learningi!
Author of Learn & Play: The American Phonics Reader 📚
Studying how children learn in school —
Sharing science-backed insights on learningi!
Pinned
Characterizing error types in the comprehension of fractions: The number line test
Understanding fractions is a major hurdle for many students. A key aspect of fraction comprehension is the ability to evaluate their numerical magnitu…
www.sciencedirect.com
Just published a new article on how students understand (…or don’t understand 😅) fractions.
After testing 26,000 kids, the mistakes we found shocked us.
Think you can do better than a 6th-grader ? Free printable test on Excello’s website (bio)!
www.sciencedirect.com/science/arti...
After testing 26,000 kids, the mistakes we found shocked us.
Think you can do better than a 6th-grader ? Free printable test on Excello’s website (bio)!
www.sciencedirect.com/science/arti...
Just published a new article on how students understand (…or don’t understand 😅) fractions.
After testing 26,000 kids, the mistakes we found shocked us.
Think you can do better than a 6th-grader ? Free printable test on Excello’s website (bio)!
www.sciencedirect.com/science/arti...
After testing 26,000 kids, the mistakes we found shocked us.
Think you can do better than a 6th-grader ? Free printable test on Excello’s website (bio)!
www.sciencedirect.com/science/arti...
Characterizing error types in the comprehension of fractions: The number line test
Understanding fractions is a major hurdle for many students. A key aspect of fraction comprehension is the ability to evaluate their numerical magnitu…
www.sciencedirect.com
November 20, 2025 at 3:37 PM
Just published a new article on how students understand (…or don’t understand 😅) fractions.
After testing 26,000 kids, the mistakes we found shocked us.
Think you can do better than a 6th-grader ? Free printable test on Excello’s website (bio)!
www.sciencedirect.com/science/arti...
After testing 26,000 kids, the mistakes we found shocked us.
Think you can do better than a 6th-grader ? Free printable test on Excello’s website (bio)!
www.sciencedirect.com/science/arti...
Reposted by Cassandra Potier Watkins
Good news in MB as govt passes Bill 225 for reading screening. "Bill 225 requires elementary schools to systematically screen elementary students for early signs of struggle, immediately act on warning signs and document findings in report cards." www.winnipegfreepress.com/breakingnews...
Manitoba early reading screening legislation passes final test
Manitoba’s poor literacy rate has prompted MLAs of all political stripes to unanimously endorse a private member’s bill to increase teacher monitoring and support for struggling readers.
www.winnipegfreepress.com
November 5, 2025 at 3:20 AM
Good news in MB as govt passes Bill 225 for reading screening. "Bill 225 requires elementary schools to systematically screen elementary students for early signs of struggle, immediately act on warning signs and document findings in report cards." www.winnipegfreepress.com/breakingnews...
Reposted by Cassandra Potier Watkins
A new paper from the lab, using 7T fMRI and MEG to shed light on how we read, specifically how the visual system encodes strings of letters and moves from retinotopic to ordinal neural codes.
www.pnas.org/doi/10.1073/...
www.pnas.org/doi/10.1073/...
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
www.pnas.org
October 22, 2025 at 2:40 PM
A new paper from the lab, using 7T fMRI and MEG to shed light on how we read, specifically how the visual system encodes strings of letters and moves from retinotopic to ordinal neural codes.
www.pnas.org/doi/10.1073/...
www.pnas.org/doi/10.1073/...
Reposted by Cassandra Potier Watkins
📢 New episode with Jamie Metsala dedicated to all reading advocates! Math next! Why are some provinces still using ineffective methods to teach reading?
❌Pitfalls of balanced literacy
📖 Structured literacy
📢 Ontario’s Right to Read report
🛠️ How to advocate
open.spotify.com/episode/15GB...
❌Pitfalls of balanced literacy
📖 Structured literacy
📢 Ontario’s Right to Read report
🛠️ How to advocate
open.spotify.com/episode/15GB...
How advocacy is changing reading instruction with Jamie Metsala (Ep 43)
Chalk & Talk · Episode
open.spotify.com
March 21, 2025 at 3:56 PM
📢 New episode with Jamie Metsala dedicated to all reading advocates! Math next! Why are some provinces still using ineffective methods to teach reading?
❌Pitfalls of balanced literacy
📖 Structured literacy
📢 Ontario’s Right to Read report
🛠️ How to advocate
open.spotify.com/episode/15GB...
❌Pitfalls of balanced literacy
📖 Structured literacy
📢 Ontario’s Right to Read report
🛠️ How to advocate
open.spotify.com/episode/15GB...
Our project to improve literacy in Mayotte with the RSMA has started !
Learn more here
www.instagram.com/reel/DHDroQV...
Learn more here
www.instagram.com/reel/DHDroQV...
March 12, 2025 at 6:52 AM
Our project to improve literacy in Mayotte with the RSMA has started !
Learn more here
www.instagram.com/reel/DHDroQV...
Learn more here
www.instagram.com/reel/DHDroQV...
Which LLM can pass a student exam?!
benchmarks.ai-for-education.org
benchmarks.ai-for-education.org
February 20, 2025 at 12:23 AM
Which LLM can pass a student exam?!
benchmarks.ai-for-education.org
benchmarks.ai-for-education.org
The building blocks of math that students need to excel — but aren't always getting hechingerreport.org/the-building...
The building blocks of math students need to excel
A flexible understanding of how numbers work is as important to math as phonics is to reading
hechingerreport.org
February 19, 2025 at 10:40 PM
The building blocks of math that students need to excel — but aren't always getting hechingerreport.org/the-building...
Reposted by Cassandra Potier Watkins
please retweet this ad for a tenured-research position in fMRI at ultra-high.
Join us!
Join us!
February 19, 2025 at 9:49 AM
please retweet this ad for a tenured-research position in fMRI at ultra-high.
Join us!
Join us!
An amazing day seeing Excello’s Kalulu reading program in action with adult learners in Brazil! Inspiring to witness how cognitive science can empower literacy at any age. #LiteracyForAll #phonics #CognitiveScience
February 12, 2025 at 1:40 AM
An amazing day seeing Excello’s Kalulu reading program in action with adult learners in Brazil! Inspiring to witness how cognitive science can empower literacy at any age. #LiteracyForAll #phonics #CognitiveScience
❤️❤️❤️ this podcast!
🚀New episode with @sarahpowellphd.bsky.social just dropped! We critique the NCTM/CEC position statement on teaching math to students with disabilities and discuss practical, research-backed ways to support students with math difficulties. open.spotify.com/episode/3QIf...
Supporting students with math difficulties with Sarah Powell (Ep 41)
open.spotify.com
February 7, 2025 at 4:59 PM
❤️❤️❤️ this podcast!
🙌🙌🙌
New paper from the lab!
Mathias Sablé-Meyer used behavior, fMRI and MEG to study the mental representation of geometric shapes (quadrilaterals ranging in regularity from squares and rectangles to random figures).
www.biorxiv.org/content/10.1...
Mathias Sablé-Meyer used behavior, fMRI and MEG to study the mental representation of geometric shapes (quadrilaterals ranging in regularity from squares and rectangles to random figures).
www.biorxiv.org/content/10.1...
www.biorxiv.org
February 7, 2025 at 4:57 PM
🙌🙌🙌
It’s mind-blowing that disproven instructional methods are still widespread in schools—undermining children’s confidence and learning. #ScienceOfReading #Phonics #EducationReform #StopTheGuessing www.itv.com/news/2025-02...
www.itv.com
February 6, 2025 at 9:19 PM
It’s mind-blowing that disproven instructional methods are still widespread in schools—undermining children’s confidence and learning. #ScienceOfReading #Phonics #EducationReform #StopTheGuessing www.itv.com/news/2025-02...
Reposted by Cassandra Potier Watkins
Over the course of 2024, the Godot project has amassed more new features and community highlights than any one person can keep track of.
Find out if you missed anything essential in our "2024 Cherry-picks" blog post 🍒
godotengine.org/article/2024...
Don't miss out on the showcased games either! 🎮
Find out if you missed anything essential in our "2024 Cherry-picks" blog post 🍒
godotengine.org/article/2024...
Don't miss out on the showcased games either! 🎮
2024 Cherry-picks
Over the course of 2024, the Godot project has amassed more new features and community highlights than any one person can keep track of. To ensure you did not miss anything essential, we have selected...
godotengine.org
January 28, 2025 at 1:09 PM
Over the course of 2024, the Godot project has amassed more new features and community highlights than any one person can keep track of.
Find out if you missed anything essential in our "2024 Cherry-picks" blog post 🍒
godotengine.org/article/2024...
Don't miss out on the showcased games either! 🎮
Find out if you missed anything essential in our "2024 Cherry-picks" blog post 🍒
godotengine.org/article/2024...
Don't miss out on the showcased games either! 🎮
Kalulu working hard today in Spanish to bring the #scienceofreading to Bogota📚
January 23, 2025 at 10:24 PM
Kalulu working hard today in Spanish to bring the #scienceofreading to Bogota📚
👾We're hiring developers who want to build #opensource #evidencebased #edtech! We use @godotengine.org
www.college-de-france.fr/en/news/seni...
www.college-de-france.fr/en/news/seni...
Senior Developer F/M Kalulu learning-to-read project - Pr Dehaene Chair - EXELLO team | Collège de France
www.college-de-france.fr
January 22, 2025 at 12:25 PM
👾We're hiring developers who want to build #opensource #evidencebased #edtech! We use @godotengine.org
www.college-de-france.fr/en/news/seni...
www.college-de-france.fr/en/news/seni...
I couldn’t believe it and had to try it myself… what is going on ??!#instagram #democrat #republican
January 21, 2025 at 11:25 AM
I couldn’t believe it and had to try it myself… what is going on ??!#instagram #democrat #republican
📣I’ve published a primer to teach your child to read!
This book is special to me. As a mom, I wanted to give my kids the best possible start in life, and that journey inspired my work in #cognitivescience.
📖: a.co/d/6LcSUmf
#ScienceOfReading #EarlyEducation #booksky💙📚 #DevSci #CogDev #DevPsy
This book is special to me. As a mom, I wanted to give my kids the best possible start in life, and that journey inspired my work in #cognitivescience.
📖: a.co/d/6LcSUmf
#ScienceOfReading #EarlyEducation #booksky💙📚 #DevSci #CogDev #DevPsy
January 19, 2025 at 7:53 PM
📣I’ve published a primer to teach your child to read!
This book is special to me. As a mom, I wanted to give my kids the best possible start in life, and that journey inspired my work in #cognitivescience.
📖: a.co/d/6LcSUmf
#ScienceOfReading #EarlyEducation #booksky💙📚 #DevSci #CogDev #DevPsy
This book is special to me. As a mom, I wanted to give my kids the best possible start in life, and that journey inspired my work in #cognitivescience.
📖: a.co/d/6LcSUmf
#ScienceOfReading #EarlyEducation #booksky💙📚 #DevSci #CogDev #DevPsy
Ever compare your kids candy colors in the U.S. and Europe? 🍭
FINALLY!!! The FDA banned Red 3, a dye linked to cancer in animals, from food. Already prohibited in the EU.
FINALLY!!! The FDA banned Red 3, a dye linked to cancer in animals, from food. Already prohibited in the EU.
The FDA does not know what chemicals are added to foods
A rule concocted in the 1950s for vinegar and spices has had unintended effects
www.economist.com
January 16, 2025 at 7:46 AM
Ever compare your kids candy colors in the U.S. and Europe? 🍭
FINALLY!!! The FDA banned Red 3, a dye linked to cancer in animals, from food. Already prohibited in the EU.
FINALLY!!! The FDA banned Red 3, a dye linked to cancer in animals, from food. Already prohibited in the EU.
Don’t miss out!
www.college-de-france.fr/fr/agenda/gr...
www.college-de-france.fr/fr/agenda/gr...
Réenchanter les maths à l’école | Collège de France
www.college-de-france.fr
January 16, 2025 at 7:36 AM
Don’t miss out!
www.college-de-france.fr/fr/agenda/gr...
www.college-de-france.fr/fr/agenda/gr...
I ❤️ed this program and now get to work with so many of the amazing professors that i met there. I can’t recommend the CogMaster enough!
There's a strong computational neuroscience track, where you could learn with the best in the field (e.g. Srdjan Ostojic, Alex Cayco-Gajic, Boris Gutkin, @stepalminteri.bsky.social, Valentin Wyart) and the mediocre, too (i.e. yours truly).
📢 Come study cognitive science in Paris!
The Master’s program in Cognitive Science at @ENS_ULM, @psl_univ, and @EHESS_fr is now accepting applications for the 2025-2026 academic year.
🗓 Deadline: March 13, 2025
💻 Apply here: master-cognitive-science.ens.psl.eu/en/applicati...
The Master’s program in Cognitive Science at @ENS_ULM, @psl_univ, and @EHESS_fr is now accepting applications for the 2025-2026 academic year.
🗓 Deadline: March 13, 2025
💻 Apply here: master-cognitive-science.ens.psl.eu/en/applicati...
January 15, 2025 at 11:56 AM
I ❤️ed this program and now get to work with so many of the amazing professors that i met there. I can’t recommend the CogMaster enough!
Kalulu's GitHub: github.com/Excello-Rech... 👾 We're #opensource and use @godotengine.org. Coders to join us in creating A/B tests with kids worldwide, improving education through science! 🌍 DM me if you’re in! #EdTech #GameDev
GitHub - Excello-Recherche-Education/Kalulu
Contribute to Excello-Recherche-Education/Kalulu development by creating an account on GitHub.
github.com
January 15, 2025 at 10:40 AM
Kalulu's GitHub: github.com/Excello-Rech... 👾 We're #opensource and use @godotengine.org. Coders to join us in creating A/B tests with kids worldwide, improving education through science! 🌍 DM me if you’re in! #EdTech #GameDev
Reposted by Cassandra Potier Watkins
Looking for some nice, clean, kid-friendly neuro content? How about a colouring-page about brain cells and they ways they interact?
Includes plain language explainers about different types of brain cells. I use this #OER in my #CogPsych classes 😉
#OA downloads: doi.org/10.21979/N9/...
1/
Includes plain language explainers about different types of brain cells. I use this #OER in my #CogPsych classes 😉
#OA downloads: doi.org/10.21979/N9/...
1/
January 15, 2025 at 5:47 AM
Looking for some nice, clean, kid-friendly neuro content? How about a colouring-page about brain cells and they ways they interact?
Includes plain language explainers about different types of brain cells. I use this #OER in my #CogPsych classes 😉
#OA downloads: doi.org/10.21979/N9/...
1/
Includes plain language explainers about different types of brain cells. I use this #OER in my #CogPsych classes 😉
#OA downloads: doi.org/10.21979/N9/...
1/
Reposted by Cassandra Potier Watkins
Comment enseigner les fractions avec sens et plaisir ?
Ce 15° #numéro du "Passeur" met en lumière :
➡️ les obstacles liés à l’apprentissage des fractions
➡️ les pistes pour y remédier
Y- accéder : 🔗https://miniurl.be/r-5wgf
@standehaene.bsky.social
Ce 15° #numéro du "Passeur" met en lumière :
➡️ les obstacles liés à l’apprentissage des fractions
➡️ les pistes pour y remédier
Y- accéder : 🔗https://miniurl.be/r-5wgf
@standehaene.bsky.social
January 13, 2025 at 4:24 PM
Comment enseigner les fractions avec sens et plaisir ?
Ce 15° #numéro du "Passeur" met en lumière :
➡️ les obstacles liés à l’apprentissage des fractions
➡️ les pistes pour y remédier
Y- accéder : 🔗https://miniurl.be/r-5wgf
@standehaene.bsky.social
Ce 15° #numéro du "Passeur" met en lumière :
➡️ les obstacles liés à l’apprentissage des fractions
➡️ les pistes pour y remédier
Y- accéder : 🔗https://miniurl.be/r-5wgf
@standehaene.bsky.social
📢 Enseignants, boostez l’apprentissage des maths avec le concours Mathador ! 🧮🎲 #Mathador #Éducation #Mathématiques blog.mathador.fr/concours-mat...
Concours Mathador 12ème édition : à vos marques, prêts, calculez ! - Le blog de Mathador, actualités des jeux, pédagogie du calcul mental et des maths
Ce lundi, plus de 50 000 élèves d’écoles et de collèges français en France et à l’étranger ont démarré la nouvelle année avec la première épreuve du Concours Mathador 2024-2025. Le gong a retenti : le...
blog.mathador.fr
January 14, 2025 at 9:21 AM
📢 Enseignants, boostez l’apprentissage des maths avec le concours Mathador ! 🧮🎲 #Mathador #Éducation #Mathématiques blog.mathador.fr/concours-mat...
We use @godotengine.org to create Kalulu, an #opensource phonics app for kids worldwide! 🎮📚 Godot’s flexibility lets us build engaging games and deploy them globally—no licensing barriers. Passionate about evidence-based education? We’re hiring developers! [email protected] to join us! #EdTech
January 13, 2025 at 3:46 PM
We use @godotengine.org to create Kalulu, an #opensource phonics app for kids worldwide! 🎮📚 Godot’s flexibility lets us build engaging games and deploy them globally—no licensing barriers. Passionate about evidence-based education? We’re hiring developers! [email protected] to join us! #EdTech