The term "teaching" is usually used in the Academy without a clear sense of what is meant, resulting in imprecise and ineffective teaching. The standard lines-that teaching is a matter of applying approved methods, that teaching is mostly a matter of teaching skills-as-means to some career or whatever-are reflective of failure in the Academy, measured in its "defect rate" of around 30 percent. The definition of teaching I sketch-skills adopted from a theoretical foundation, in turn based on a critique-is well (...) founded in the scholarly tradition. Such a definition is, however, challenging to an Academy at the end of an ancien régime. (shrink)