An Investigation into the Pedagogical Features of Documents Emily Sheng author Prem Natarajan author Jonathan Gordon author Gully Burns author 2017-09 text Proceedings of the 12th Workshop on Innovative Use of NLP for Building Educational Applications Joel Tetreault editor Jill Burstein editor Claudia Leacock editor Helen Yannakoudakis editor Association for Computational Linguistics Copenhagen, Denmark conference publication sheng-etal-2017-investigation 10.18653/v1/W17-5012 https://aclanthology.org/W17-5012/ 2017-09 109 120