Showpiece: ISnap demonstration

This showpiece will present iSnap, an extension of the block-based, novice programming environment Snap!, which supports struggling students by providing on-demand hints and feedback that help them complete programming assignments. iSnap extends the existing syntactic scaffolding offered by block-based programming to additionally support the implementation of programming tasks. Research on iSnap has explored questions of how visual programming environments can better support learners, the impact of this support, and how learners seek and use computer-based help. The showpiece will consist of an interactive demonstration of iSnap, including the user interface experienced by students and the data-driven algorithm used to automatically generate the programming feedback.