Tangible technologies to transform learning in early childhood education and first grade. Applied research, participatory design, and real classroom integration.

Explore the project

The Project

CETA develops and evaluates educational technologies that combine physical objects with digital experiences, aiming to expand interaction and feedback to support early learning. The project integrates applied research, participatory design, and situated work in real classroom contexts, with a focus on early childhood education and the first years of primary school.

Our approach places teachers and educational communities at the center: we co-design proposals, iterate prototypes, and document implementation and appropriation conditions. We aim for tools that are configurable by teachers, aligned with the curriculum, and sustainable beyond direct intervention by the research team.

Inclusion

A core line of the project is inclusive education. We have designed accessible tangible experiences, developing a mathematics game prototype for children with visual impairments, and we are currently working on a literacy game with adaptations to support access and participation in the classroom.

CETA system overview
CETA system overview (tangible interaction + tablet).

Prototypes

Tangible games and systems developed in the project, with examples of classroom use.

JO!

A tangible game focused on literacy, combining physical manipulation with digital feedback.

BrUNO

Number composition inspired by Montessori materials, in a gamified environment configurable by the teacher.

Pensamiento Computacional

Computational thinking in early childhood education and first grade through tangible interaction.

Publications

Selected journal articles and conference papers.
2025 · Conference
Letters You Can Feel: Co-Designing Tangible Literacy for Blind and Low-Vision Classrooms
Agustina Bitenbinder; Daniela Alexandra Bolívar; Natalia Fernández; Romina N Abeldaño; Maria Pascale; Ana Cristina Pires; Fernando Gonzalez-Perilli
Proceedings of the 24th Interaction Design and Children · pp. 884–888 · 2025/06/23 · DOI: 10.1145/3713043.3731500
Ver DOI
2024 · Conference
They played for 45 minutes!?: Evaluating Jo! a TUI Tailored for Real-World Classroom Setting
Fernando Gonzalez-Perilli; Camila Hergatacorzian; Mariana Daluz; Gonzalo Varela; Juan Goyret; Ana Cristina Pires
Conference paper · 2024/06/17 · DOI: 10.1145/3628516.3659381
Ver DOI
2023 · Journal article
Auditory and haptic feedback to train basic mathematical skills of children with visual impairments
Sebastián Marichal; Andrea Rosales; Fernando González Perilli; Ana Cristina Pires; Josep Blat
Behaviour & Information Technology · Vol. 42(8) · pp. 1081–1109 · 2023/06/11
2022 · International conference
Co-designing Game Narratives and Dynamics with First Grade Children
Camila Hergatacorzian; Mariana da Luz Werner; Juan Goyret; Gonzalo Varela;Fernando González Perilli
Proceedings of the ACM Interaction Design and Children Conference (IDC 2022) Braga, Portugal · 27–30 June 2022
2022 · International conference
Diseño participativo de interacción tangible con fines educativos
Fernando González Perilli; Ewelina Bakala; Maria Pascale; Mariana da Luz Werner;Camila Hergatacorzian; Ana Cristina Pires
XVI Conference de la Asociación Latinoamericana de Investigadores de la Comunicación (ALAIC) Buenos Aires, Argentina · 26–30 septiembre 2022
2022 · Journal article
Learning Maths with a Tangible User Interface: Lessons Learned Through Participatory Design with Children with Visual Impairments and Their Educator
Ana Cristina Pires; Ewelina Bakala; Fernando González-Perilli; Gustavo Sansone; Bruno Fleischer; Sebastián Marichal; Tiago Guerreiro
International Journal of Child-Computer Interaction ·Vol. 32 · 100382 · 2022 · Elsevier DOI: 10.1016/j.ijcci.2021.100382
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2019 · Conference
A Tangible Math Game for Visually Impaired Children
Ana Cristina Pires; Sebastián Marichal; Fernando Gonzalez-Perilli; Ewelina Bakala; Bruno Fleischer; Gustavo Sansone; Tiago Guerreiro
Conference paper · 2019 · DOI: 10.1145/3308561.3354596
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2018 · Conference
LETSmath
Sebastián Marichal; Andrea Rosales; Gustavo Sansone; Ana Cristina Pires; Ewelina Bakala; Fernando Gonzalez Perilli; Bruno Fleischer; Josep Blat
Conference paper · 2018 · DOI: 10.1145/3236112.3236157
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2017 · Conference
CETA
Sebastián Marichal; Andrea Rosales; Gustavo Sansone; Ana Cristina Pires; Ewelina Bakala; Fernando Gonzalez Perilli; Josep Blat
Conference paper · 2017 · DOI: 10.1145/3098279.3125435
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Team

Each member links to their CVUy (when available).

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