hi

I am an Assistant Professor in the School of Design at the Hong Kong Polytechnic University and direct the Little Design Group. My research sits at the intersection of Child-Computer Interaction, Design, and the Learning Sciences, driven by a commitment to playfulness, inclusivity, and meaningful engagement in technology design and use. I investigate how social and cultural contexts shape young people’s interactions with technology and design tools, media, and environments that support their experiences across diverse settings, especially in learning contexts. I also contribute to broader conversations in Human-Computer Interaction and design research by reflecting on design methodologies, exploring designerly ways of knowing, and examining how emerging technologies can be ethically and creatively designed for children and other underserved communities.

Before joining PolyU Design, I served as a Temporary Research Faculty in the Creative Communities research group at the University of Colorado Boulder, and I was also a research intern at the Berkman Klein Center for Internet and Society at Harvard University. I obtained my Ph.D. in Information Science from the University of Colorado Boulder, a Master's degree in Design from Shanghai Jiao Tong University, and a Bachelor's degree in Industrial Design from Zhejiang University.

Selected Projects

Gender-Inclusive STEM Learning Media

Making STEM learning more accessible and equitable for all

Culturally Responsive Learning Technology

Desiging culturally responsive learning media for children

AI Literacy for Children

Promoting AI literacy among young people

Physical Play for Computational Learning

Combining physical play and coding activities for children

Critical Computational Literacy

Cultivating children's critical thinking while learning computing

Joint Media Engagement

Understanding, designing, and theorizing joint media engagement

Selected Publications [Google Scholar]

Participatory Design in Human-Computer Interaction: Cases, Characteristics, and Lessons [PDF]
Xiang Qi, & Junnan Yu
In Proceedings of the 2025 CHI Conference on Human Factors in Computing Systems (CHI ’25), Yokohama, Japan.

Technology-Mediated Strategies for Coping with Mental Health Challenges: Insights from People with Bipolar Disorder [LINK]
Tian Xu*, Junnan Yu*, Dylan Doyle & Steve Voida (*: Equal Contribution)
Proc. ACM Hum.-Comput. Interact. 7, CSCW2, Article 240 (October 2023), 31 pages. (CSCW '23)

Exploring Computational Thinking with Physical Play Through Design [LINK]
Junnan Yu, Ronni Hayden & Ricarose Roque
In Proceedings of the 22nd Annual ACM Conference on Interaction Design and Children (IDC '23), Chicago, IL, USA.

Family Negotiation in Joint Media Engagement with Creative Computing [LINK]
Junnan Yu, Sari Widman & Ricarose Roque
In Proceedings of the 2023 CHI Conference on Human Factors in Computing Systems (CHI '23), Hamburg, Germany.

Parental Facilitation of Young Children’s Technology-based Learning Experiences from Nondominant Groups During the COVID-19 Pandemic [LINK]
Junnan Yu, Julisa Granados, Ronni Hayden & Ricarose Roque
Proc. ACM Hum.-Comput. Interact. 5, CSCW2, Article 307 (October 2021), 27 pages. (CSCW '21)

A Review of Computational Toys and Kits for Young Children [LINK]
Junnan Yu & Ricarose Roque
International Journal of Child-Computer Interaction, (2019) 21: 17–36.