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This paper discusses an approach for transforming solitary exercises into social exergames. We frame our discussion by highlighting the relation between the original exercises and game interactions, and by analyzing an example exergame which is successfully transformed from its original solitary exercise. We present a user study of the exergame that evaluates the need for holistic transformation strategies from solitary exercises into social exergames.

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On school field trips, chaperoning teachers' foremost concern is the safety of the children, particularly ensuring that none of them go missing. However, they have limited attention resources and face many challenges in keeping track of their charges. We present RubberBand, an assistive application that helps alleviate the teacher's burden. Our approach adapts to diverse field trip environmental and child behavioral dynamicity, utilizing observations of the relative dispersion of children and their tendency to form sub-groups.

In this article, we present a serendipitous social network that makes use of individuals' contextual information to connect people in shared immediate situations. We build a prototype microblogging service that uses a serendipitous social network as a substrate. We performed an initial user study and found that users engaged in shared immediate situations are likely to exchange posts relevant to their situation that provide useful information or reflect emotional understanding.

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