@inproceedings{ferraro-eisner-2013-virtual,
    title = "A Virtual Manipulative for Learning Log-Linear Models",
    author = "Ferraro, Francis  and
      Eisner, Jason",
    editor = "Derzhanski, Ivan  and
      Radev, Dragomir",
    booktitle = "Proceedings of the Fourth Workshop on Teaching {NLP} and {CL}",
    month = aug,
    year = "2013",
    address = "Sofia, Bulgaria",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/W13-3411/",
    pages = "66--76"
}