Combining Handhelds with a Whole-Class Display to Support the Learning of Scientific Control

Third grade students used wireless handhelds and a large shared display to discover strategies for control of variables in scientific experiments. The technology suite supported activity requirements including synchronous individual control, face-to-face discourse, and instantaneous display updates. In an empirical study, students demonstrated learning in both original and transfer domains

The effects of the media equation on children

Computers play an increasingly large part in children’s daily lives, yet most interface design research has focused on adult users. One area of research that has informed adult interface design is the Media Equation, which explains how people respond to media in a fundamentally social manner and how they treat computers as social actors in interactions. To date, it was unknown whether these findings apply to children as well. This thesis investigates the effects of the Media Equation on children in three specific areas: praise, team formation, and politeness. It also examines whether varying the form of the computer affects the Media Equation in any way and whether there are any gender differences in how children respond to the Media Equation. Little evidence was found to support the existence of Media Equation effects on children. Children responded positively regardless of whether any Media Equation elements were incorporated into the interfaces. These results raise doubts on whether there is any added value to including Media Equation principles into the design of children’s interfaces. The results do, however, shed some light on children-computer interaction and lead to a set of guidelines for designers of children’s technology

A community-based approach to new medium integration in South African education : a combination of ICT4D process approach and ethnographic action research techniques

Includes bibliographical references.Our initial study indicates that successful integration of new communication medium into South African schools is not only challenging from the financial point of view, but also in terms of designing tools that fit within educational goals, as well as the training and support of relevant personnel in order to use the new medium effectively. Training and support effort, however, are often seen as top-down or outside-in approach that many teachers and past integration efforts have identified as being one of the contributing factors to integration failure. By looking at past integration efforts, as well as through our own initial study and in the field, we recognise similar results and challenges in efforts to introduce information and communication technologies into developing communities. Work done by Heeks et al. (Heeks & Molla, 2009) (Walton & Heeks, 2011) identified the Process approach as a contributing factor towards successful Information and communication technologies for development projects. We developed a novel approach to medium integration in education by combining the Process approach with Ethnographical Action Research techniques as well as taking into account recommendations made by past medium integration in education. To evaluate our approach we implemented the Process approach at an Ethnographical Action Research site with the researcher as one of the teachers with the objective of integrating the mobile medium into the school

Designing for the Cooperative Use of Multi-user, Multi-device Museum Exhibits.

This work explores software-based museum exhibits that allow groups of visitors to employ their own personal mobile devices as impromptu user interfaces to the exhibits. Personal devices commandeered into service in this fashion are dubbed Opportunistic User Interfaces (O-UIs). Because visitors usually prefer to engage in shared learning experiences, emphasis is placed on how to design software interfaces to support collaborative learning. To study the issue, a Design-Based Research approach was taken to construct an externally valid exemplar of this type of exhibit, while also conducting more traditional experiments on specific features of the O-UI design. Three analyses, of – (1) museums as a context, (2) existing computer-based museum exhibits, and (3) computer support of collaborative processes in both work and classroom contexts – produced guidelines that informed the design of the software-based exhibit created as a testbed for O-UI design. The exhibit was refined via extensive formative testing on a museum floor. The experimental phase of this work examined the impact of O-UI design on (1) the visual attention and (2) collaborative learning behaviors of visitors. Specifically, an O-UI design that did not display any graphical output (the “simple” condition) was contrasted against an O-UI design that displayed multi-element, dynamically animated graphics (the “complex” condition). The “complex” O-UIs promoted poor visual attention management, an effect known as the heads-down phenomenon, wherein visitors get so enmeshed with their O-UIs that they miss out on the shared context, to the detriment of group outcomes. Despite this shortcoming, the “complex” O-UIs better promoted goal awareness, on-task interactions between visitors, and equity in participation and performance. The tight output coupling (visitors see only one shared display) of the “simple” O-UI condition promoted emergent competition, and it encouraged some visitors (especially males) to become more engaged than others. Two design recommendations emerge: (1) incorporating devices with private displays (O-UIs with output) as interfaces to a single large display better promotes collaboration (especially equity), and (2) O-UIs with “complex” displays may be used in museum exhibits, but visitors would benefit from mechanisms to encourage them to direct their attention to the shared display periodically.Ph.D.Computer Science & EngineeringUniversity of Michigan, Horace H. Rackham School of Graduate Studieshttp://deepblue.lib.umich.edu/bitstream/2027.42/61771/1/ltoth_1.pd