Christina Areizaga Barbieri, Ph.D.

Thanks! 😊

@mclstrainee.bsky.social

Hi @flavinska.bsky.social ! I’m a little late in working on my submission. I recall there being an excel sheet in the past with symposia in development last time it was in DC. Is that a thing this year? Where can I find that if so?

New paper led by Ilyse Resnick! Informal fraction knowledge grew Gr1–2 w/little instruction; nonsymbolic>symbolic; “half” led in Gr1, 3rds/4ths in Gr2; early fractions predicted later math beyond number sense (Resnick, Viegut, Barbieri, @noranewcombe.bsky.social & Jordan) tinyurl.com/Resnicketal2...

New paper in *Instructional Science* led by PhD Candidate Taylor-Paige Guba w/@mandymathed.bsky.social & Anne Morris! Correct, complete exemplars support PSTs' fraction magnitude explanations. Persistent overconfidence highlights need for explicit metacognitive support in teacher ed. rdcu.be/eX7ue

I’m so close to 1k! Hurry find 5 more real people and make them follow me.

Find paper here! kwnsfk27.r.eu-west-1.awstrack.me/L0/https:%2F...

Thanks for leading this work @elenamsilla.bsky.social ! Always a pleasure to work and write with Elena!

As Dr. Chawla explains, the 0–100 number line estimation task is widely used to study children’s numerical magnitude understanding. Along w/Dr. @juliebooth.bsky.social we asked a practical measurement question: What is the optimal number of items needed to retain the task’s utility? See new 📄 in JNC

Making an impact in the lives of LGBTQ+ students - College of Education & Human Development University of Delaware graduate student supports LGBTQ+ youth, drawing on personal experience and strengths of UD’s program.

Student Spotlight: After finding a “home” in our #schoolpsychology program, grad student Lauren Dombrowski shares their commitment to supporting #LGBTQ+ youth in Delaware schools, drawing on personal experience and strengths of @udelaware.bsky.social’s program: www.cehd.udel.edu/graduate-stu...

This is my amazing Doctoral advisee’s dissertation. She is a prior teacher and we would love if folks in the Mid-Atlantic region would repost!

One week left to apply to the University of Delaware’s PhD in Education (Learning Sciences, Literacy, Math Ed, Sociocultural Approaches, School Psych) or Educational Statistics and Research Methods!

A parent’s worst nightmare.

Interested in a PhD in one of our specialization areas or programs from University of Delaware? Join me at our virtual open house tomorrow - Tues., Nov. 4 from 6-7:30 PM. Register here to get the link! grad-admissions.udel.edu/register/?id...

This was such a fun experience with @rodriguesjm.bsky.social Thanks for highlighting our work @jeffgreene.bsky.social !

An ed psych journal is refusing to publish our manuscript unless we "neutralize" "political" content. This is after the manuscript was peer-reviewed and accepted for publication. DM me for details!

I'm devastated. Two years of work and revisions with four junior co-authors cast aside that easily.

A field-initiated vision of research infrastructure for STEM education - International Journal of STEM Education STEM education research has historically been under-equipped, relying on standardized tests and questionnaires while other fields deploy space telescopes and particle accelerators. What would happen i...

Open-access publication alert!! This is a special one; it represents two years of work with an amazing team of researchers, teachers, educational stakeholders, and technology experts to identify infrastructure that would advance equity in STEM education: link.springer.com/article/10.1...

Ph.D. in Education - School of Education Ph.D. in Education The Ph.D. in Education program in the School of Education seeks to prepare scholars whose research will address critical problems in education, develop our understanding of teaching...

Apply to UD School of Education's Ph.D. in Education or Educational Statistics and Research Methods (ESRM) Programs by Nov. 15!
SOE Specializations include Literacy, Learning Sciences, Math Ed, School Psych, and Sociocultural & Community-based Approaches! www.education.udel.edu/doctoral/phd/

Excited to share our new paper in Psychological Methods: “Machine Learning for Propensity Score Estimation: A Systematic Review and Reporting Guidelines.” Led by Prof. Walter Leite (UF) with 6 co-authors across 6 universities. DOI: doi.org/10.1037/met0...
#CausalML #PropensityScore

Event flyer for "Spilling the Tea on the Liberal Arts Job Market" featuring Dr. Jen Coane (Colby), Dr. Katherine Moore (Arcadia), Dr. Christen Deveney (Wellesley), Dr. Erika Langley (Whitman), Dr. Kimberly Wong (Williams), Dr. Emily Foster-Hanson (Swarthmore), Dr. Claire Robertson (Colby), and Dr. Manasi Jayakumar (Oberlin). Event is Friday, October 24, 2025, 2:30-4:30 PM ET.

🚨 THIS FRIDAY: Spilling the Tea on the Liberal Arts Job Market ☕

Friday, Oct 24 | 2:30-4:30 PM ET | Virtual & Free

Hosted by Women in Cognitive Science+ (WiCS+)

Register: forms.gle/2ciSJXXuL2yE...

#AcademicJobs #AcademicBluesky #HigherEd #LiberalArts #CogSci #GradSchool #WomenInSTEM #PostDoc

My 3 YO seems not to think so 🙃

RFK Jr on Tylenol and autism: "It is not proof. We're doing the studies to make the proof."

We’re hiring! Come work with us in the Department of Special Education at UT Austin. Scholar in special education or related fields, without restrictions on rank or specific research program. Apply here:
faculty.utexas.edu/career/168004 #WhatStartsHere

My undergraduates (middle school math methods) would like advice and insights for teachers' interactions with parents. Teachers or teacher educators, what advice or ideas would you give to these future teachers?

Oct = SREE PMENA & NCTM! @elenamsilla.bsky.social
presents lab work @ PMENA in collab w/@damcotto.bsky.social. @meg-botello.bsky.social
presents work w/@drteyar.bsky.social,
@mandymathed.bsky.social & Dr. Jordan at NCTM. Lab Alum Dr. @kamalc31.bsky.social presents his UMaine work @ SREE tomorrow!

🚨 TODAY!! 🚨 Join us to learn about using Sharing Circles at 2pm ET. Hope to see you there!

‘We don't wait to be celebrated’: What Juneteenth means this year Thursday marks the first national observance under President Donald Trump of Juneteenth, the day commemorating the end of slavery in the United States.

"We celebrate our history, and we celebrate our contributions to this country. We don’t have to have a proclamation from anyone else but ourselves." My Juneteenth Amendment column on resistance and radical imagination in the age of erasure w/@kayewhitehead: 19thnews.org/2025/06/june...

Also…block him. ✌️😮‍💨

I'm an Associate Editor at Current Directions in Psychological Science and I have a new Special Issue call on Intergroup Allyship. Proposal submissions are due by July 18. Please share widely!
www.psychologicalscience.org/publications...

Great time today giving a workshop on working w/worked examples in enVision math to DE math teachers & specialists for the School Success Center at @udelaware.bsky.social. Enjoyed developing the session w/PhD candidates @elenamsilla.bsky.social @meg-botello.bsky.social & Dr. @sarcler.bsky.social