GrAss: a teacher-designed grading assistant

I've been working on a project for a while now and wanted to share a brief glimpse of it and also kind of document what has been occupying my time: GrAss: teacher-designed AI & grading system. 

Tell me what you think about your motivation

The secret of effective motivation? Steer away from instrumental (external) consequences and incentives. Focus on cultivating the internal drive. Sounds good and all...but how easy / practical is that?