Hyukjae JangSungwon Peter ChoeInseok Hwang 0001Chanyou HwangLama NachmanJunehwa SongRubberBand: augmenting teacher's awareness of spatially isolated children on kindergarten field trips.236-2392012UbiComphttps://doi.org/10.1145/2370216.2370254conf/huc/2012db/conf/huc/ubicomp2012.html#JangCHHNS12