Christina Areizaga Barbieri, Ph.D.

Christina Areizaga Barbieri, Ph.D.

@cabarbieri.bsky.social

Associate Prof, U of DE | Math cognition, instruction, motivation | PI of M^3 lab | Supports for Minoritized students | Stats enthusiast | 1st Gen | Latina 🇵🇷🇮🇹 she/her

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Christina Areizaga Barbieri, Ph.D.
@cabarbieri.bsky.social

New 📄 on sense of belonging for Black & Latine adolescents in math! Led by @drbrookeedu.bsky.social, w/Dr. Nicolai & Dr. Chen, we examine belonging as dynamic, contextual, & shaped by racialized & cultural experiences, w/implications for math learning environments tinyurl.com/HarrisThomas...

tinyurl.comExamining Black and Latine Students’ Sense of Belonging within the Mathematics Classroom: A Narrative Review - Educational Psychology ReviewAcademic environments that support a sense of belonging, or students’ feelings of being included, valued, accepted, and supported, are positively associated with students’ engagement, persistence, and academic achievement. This is particularly true for Black and Latine adolescent students in U.S. mathematics classrooms. Research has also shown that students’ sense of belonging is a situated, malleable construct that can fluctuate throughout the school day. This narrative review examines how the dynamic nature of belonging interacts with the complex consideration of adolescent Black and Latine students’ ethnicity, race, and culture within the context of mathematics. We advance three considerations for researchers when investigating and supporting the belonging experiences of Black and Latine students within mathematics: Contextual Factors that Shape Sense of Belonging to Mathematics, Positionality and Framing of Investigations of Belonging, and Recognizing the Whole Student. By critically examining the educational contexts in which Black and Latine adolescent students engage with mathematics, alongside the prevailing frameworks and assumptions adopted in research studies, researchers are more likely to adopt a holistic perspective toward these students. Consequently, this approach fosters the production of research findings that affirm and enhance, rather than undermine, Black and Latine students’ sense of belonging within mathematical learning environments. Recommendations for research and practice are also shared.
Christina Areizaga Barbieri, Ph.D.
@cabarbieri.bsky.social

At MCLS2026 in Padova 🇮🇹? So am I! Come visit me at the 5PM poster session on Wednesday when I’ll share work conducted with Elena Silla Gabriella Morra & Dana Miller-Cotto. See poster titled Collective cognitive resources: The role of collaboration in worked example learnin

Christina Areizaga Barbieri, Ph.D.
@cabarbieri.bsky.social

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

Elena Silla@elenamsilla.bsky.social

Excited to share a new paper from UD's Early Fraction Understanding Project! We identified three latent profiles of informal fraction knowledge in first grade, each with relative strengths in their understanding of fraction concepts. Profile membership predicted cognitive skills and math knowledge.

Christina Areizaga Barbieri, Ph.D.
@cabarbieri.bsky.social

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

Kamal Chawla@kamalc31.bsky.social

🚨NEW PAPER🚨 How many items do we need for the 0–100 number line? Using IRT (GRM) on N=234, we cut 23→15 items—same developmental patterns + predictive power (K–3) while saving time, also capturing accuracy + linearity w/ @juliebooth.bsky.social @cabarbieri.bsky.social 🔢📏 doi.org/10.23668/psy...

doi.orgOptimizing the 0-100 Number Line Estimation Task: Scale Reduction and Its Implications for Elementary Mathematical Cognition [Author Accepted Manuscript] | PsychArchivesPsychArchives is a disciplinary repository for psychological science and neighboring disciplines.
Christina Areizaga Barbieri, Ph.D.
@cabarbieri.bsky.social

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!

Elena Silla@elenamsilla.bsky.social

Education colleagues: I am partnering with middle- and high-school math teachers in DE, PA, and MD to look at how belonging-supportive instruction shapes students' math experiences (see infographic). Teachers can participate in 2025 or early 2026. Please share w/ teachers who may be interested!

Christina Areizaga Barbieri, Ph.D.
@cabarbieri.bsky.social

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!

Christina Areizaga Barbieri, Ph.D.@cabarbieri.bsky.social

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/

education.udel.eduPh.D. in Education - School of EducationPh.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...
Christina Areizaga Barbieri, Ph.D.
@cabarbieri.bsky.social

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...

grad-admissions.udel.eduVirtual Open House: Education and Human Development
Christina Areizaga Barbieri, Ph.D.@cabarbieri.bsky.social

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/

education.udel.eduPh.D. in Education - School of EducationPh.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...
Christina Areizaga Barbieri, Ph.D.
@cabarbieri.bsky.social

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

Jeff Greene@jeffgreene.bsky.social

There's been great research on supporting students w/mathematics difficulties. Would that research be even better if we integrated ideas from cognitive load theory? Yes! Learn all about it on this episode of the Div15 podcast with Drs. Barbieri & Rodrigues! #PsychSciSky #AcademicSky #EduSky

soundcloud.comChristina Barbieri & Jessica RodriguesDr. Christina Barbieri and Dr. Jessica Rodrigues join podcast host Dr. Jeff Greene to discuss their Educational Psychologist article, “Leveraging cognitive load theory to support students with mathema

Christina Areizaga Barbieri, Ph.D. reposted

Christy M. Byrd
@christymbyrd.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.

Christina Areizaga Barbieri, Ph.D. reposted

Dr. Allison Master
@allisonmaster.bsky.social

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...

link.springer.comA field-initiated vision of research infrastructure for STEM education - International Journal of STEM EducationSTEM 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...
Christina Areizaga Barbieri, Ph.D.
@cabarbieri.bsky.social

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/

education.udel.eduPh.D. in Education - School of EducationPh.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...

Christina Areizaga Barbieri, Ph.D. reposted

sdeltufo.bsky.social
@sdeltufo.bsky.social

🚨 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

Christina Areizaga Barbieri, Ph.D. reposted

Aaron Rupar
@atrupar.com

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

Christina Areizaga Barbieri, Ph.D. reposted

Mandy Jansen
@mandymathed.bsky.social

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?

Christina Areizaga Barbieri, Ph.D. reposted

Yin Chen, PhD
@yinchen.bsky.social

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

Yin Chen, PhD@yinchen.bsky.social

Join us on Friday, 6/20 at 2pm EST for the APA Div 15's Anti-Racist & Anti-Colonial Research Methods series! Our final event will focus on using Sharing Circles (a method rooted in traditional practices of many Indigenous communities) w/ Macy Bowman 🤩 Register ➡️: tiny.utk.edu/APADiv15SharingCircles

Christina Areizaga Barbieri, Ph.D. reposted

Errin Haines
@errinhaines.bsky.social

"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...

19thnews.org‘We don't wait to be celebrated’: What Juneteenth means this yearThursday marks the first national observance under President Donald Trump of Juneteenth, the day commemorating the end of slavery in the United States.

Christina Areizaga Barbieri, Ph.D. reposted

Scott Delaney
@scott-delaney.bsky.social

My ongoing request: If your NSF or NIH grant was terminated--whether at Harvard or elsewhere--please report it here. NSF: grant-watch.us/submit-nsf.h... NIH: grant-watch.us/submit-nih.h... Our trackers are actively used in lawsuits and are often the only record that terminations ever occurred.

Dan Garisto@dangaristo.bsky.social

NSF appears to be terminating hundreds of its grants to Harvard, per internal sources at NSF and at Harvard. At least one division has had all its grants cut.

Christina Areizaga Barbieri, Ph.D. reposted

Dr. David Miller 🏳️‍🌈
@davidimiller.bsky.social

🧪 Data update on NSF grant terminations Including last Friday's terminations, STEM education grants now account for... 54% of terminated NSF grants (751 of 1381) 75% of terminated NSF funding ($590M of $783M) The next generation of scientists is being targeted. #WithoutNSF #SaveNSF

Christina Areizaga Barbieri, Ph.D.
@cabarbieri.bsky.social

Check out Meg’s new paper on motivational messaging during fraction instruction! Our students are so stellar 🤩 Love to see them shine ☺️

Meg Botello@meg-botello.bsky.social

Grateful to share that my very first, first-authored manuscript has been published! Thanks to my advisors & community❤️It feels surreal to have added a very small piece to the field that I care about so much. Check out my highlights and read more about it here: journals.uchicago.edu/eprint/KVUY6...

Christina Areizaga Barbieri, Ph.D.
@cabarbieri.bsky.social

I typically teach our doctoral level intro stat course and use exams. This semester I replaced exams with research proposals - data analytic plans & r-scripts included. These are infinitely more fun to grade. New personal rule: don’t assign anything that’s annoying to grade. Ever.

Christina Areizaga Barbieri, Ph.D.
@cabarbieri.bsky.social

@rodriguesjm.bsky.social 🤩

Christina Areizaga Barbieri, Ph.D.@cabarbieri.bsky.social

🚨New Pub Alert!🚨 Check out our new paper in Educational Psychologist w/@rodriguesjm.bsky.social Leveraging cognitive load theory to support students with mathematics difficulty! Really enjoyed working on this piece w/Jess & hope we provide some useful recommendations! tinyurl.com/BarbieriRodrigues25

tandfonline.comLeveraging cognitive load theory to support students with mathematics difficultyWe propose that cognitive load theory (CLT, Sweller) may be particularly relevant for informing research and instruction focused on supporting students with disabilities (SWDs), specifically studen...
Christina Areizaga Barbieri, Ph.D.
@cabarbieri.bsky.social

🚨New Pub Alert!🚨 Check out our new paper in Educational Psychologist w/@rodriguesjm.bsky.social Leveraging cognitive load theory to support students with mathematics difficulty! Really enjoyed working on this piece w/Jess & hope we provide some useful recommendations! tinyurl.com/BarbieriRodrigues25

tandfonline.comLeveraging cognitive load theory to support students with mathematics difficultyWe propose that cognitive load theory (CLT, Sweller) may be particularly relevant for informing research and instruction focused on supporting students with disabilities (SWDs), specifically studen...