Jay Jennings Kasia Muldner When Does Scaffolding Provide Too Much Assistance? A Code-Tracing Tutor Investigation. 784-819 2021 31 Int. J. Artif. Intell. Educ. 4 https://doi.org/10.1007/s40593-020-00217-z db/journals/aiedu/aiedu31.html#JenningsM21