His Tabulae in grammaticen hebraeam (1529), Institutiones in linguam graecam (1530), and Meditationes graecanicae (1531) appeared at Leuven. The Institutiones and Meditationes passed through a number of editions, and had many commentators. He maintained a principle revived in modern teaching, that the learner should not be puzzled by elaborate rules until he has obtained a working acquaintance with the language.