Tap Drag Swipe Pinch Rotate Most Common Gestures 1. Wobbrock, J.O., Morris, M.R., and Wilson, A.D. User-defined gestures for surface computing. Proc.CHI'2009, ACM Press 1083–1092. REFERENCES 1. Kuilman, A. iPad 2 group test setup. Flickr. <http://bit.ly/1jwIv5d>. 2. Freepik. Gesture Icons. Flaticon. Graphic Resources SL. <http://www.flaticon.com/>. IMAGE CREDITS Effective Abstraction Gamification Score Simplified Referent Name A qualitative analysis of gestures by 12 children and 14 adults using an adapted user-defined gesture method by Wobbrock et al. [1] Participants used think-aloud while creating gestures for 17 actions. APPROACH Adapted child-centric prompt Original adult-centric prompt [1] To characterize children and adults’ gesture creation by adapting a user-defined gesture elicitation method. GOAL Understanding Child-Defined Gestures and Children’s Mental Models for Touchscreen Tabletop Interaction Child Participant Adult Participant FINDINGS Previous touchscreen experience strongly influenced gesture creation. Children and adults created similar gestures. Participants used standard touchscreen gestures in 96% of all gestures created. Participants performed one-handed gestures using one finger for 68% of all gestures. tap drag swipe pinch symbolic rotate other adults children 40% Gesture Type N = 236 adult gestures and 201 child gestures 36% 25% 30% 13% 17% 13% 11% 2% 7% 3% 5% 3% 2% Percent of Gestures (%) Karen Rust [email protected] Lisa Anthony [email protected] Leah Findlater [email protected] 1 Meethu Malu [email protected]