While Child–Computer Interaction (CCI) research frequently reports successful outcomes, challenges and failures in studies conducted in school context are rarely examined in detail. This paper addresses this gap through a collective reflection on when and how research with children in school contexts can be considered successful, and what challenges threaten such success. Based on decades of CCI experience from fifteen researchers across multiple countries, the study used a structured, multi-phase process informed by confessional research and child-centered ethics. The analysis identifies nine aspects of success across three areas (stakeholder experience, data generation, and children’s engagement) alongside fifteen recurring challenges organised into seven areas. We also map the relationships between successes and challenges, revealing ethically consequential tensions often overlooked in published accounts. The paper offers practical guidance, an analytical vocabulary, and a reflective method to foster more transparent and ethical CCI research in school settings.

In this paper, we use the Child-Centred Ethics framework to critically reflect on the planning, implementation, and impact of twelve (2-4 year) projects with children (ages 2-18 years) in Finland, the UK, India, Japan, and the USA. Our analysis reveals diverse ethical challenges and experiences: adapting materials based on the abilities, interests and agendas of the children, teachers, and schools, considering consent and assent as continuous processes, and exploring impacts beyond the project duration. We also discuss handling data ownership among participants and international collaborators, and managing difficult situations that arise, such as, participants pushing the boundaries of technology and people, technical breakdowns, and in situ negotiations of roles among teachers and researchers. We use our analysis to extend the CCE Framework in two distinct ways; incorporating adult stakeholders and impacts beyond a projects’ lifecycle. Our work contributes to research on ethics in Child-Computer Interaction (CCI) research, addressing how to plan, implement, and create an impact in CCI projects with children.

Making in a digital fabrication laboratory (Fab Lab) using Fab Lab processes is generally challenging for novice makers, particularly for families with young children. We conducted a qualitative study on family engagement in open-ended digital fabrication activities in an informal Fab Lab setting, where families engaged in 2D/3D designing, laser cutting, and 3D printing. We observed challenging transformations when families moved from brainstorming to digital designing and, subsequently, from digital designing to machine-making a physical object. Fab Lab instructors’ work, parental approaches, and oral discussions, which were all intended to facilitate children's participation in the activities, were central in and intertwined with these transformations, and led to the engagement or disengagement of children. Through this study, we shed light on the challenges families faced and provide insights into how to reduce the complexity of digital fabrication for families who have no prior experience of it as well as into how Fab Lab instructors can help enable young children's participation in the related activities.

Physical space and materials we work with, as well as people we interact with affect the design and making processes. These aspects in relation to 3D designing in alignment with 3D printing need considerable exploration within Child-Computer interaction (CCI) research community. We conducted our case study by collecting 9-full-day-observation and interview data and examining 3D modeling and 3D printing activities, as work duties of 15-17-years-old summer trainees organized at the university. We identified, inspired by nexus analysis, different discourses circulating around these activities of novice young people and how the discourses are intermingled with the space, the materials, and the task at hand in complex ways, constructing and shaping the experience of the young participants. In our research and design implications, by signifying the impact of the people, challenges, tasks, spaces and tools, we provide recommendations for maintaining children's engagement in digital fabrication, significantly 3D designing and 3D printing, activities.