In a class where the students change every three weeks, but most of the food preparation tasks remain the same, I have seen many of the same mistakes being made repeatedly. To pre-empt this, I have found that performing small, quick, well organized mini-demos throughout the first week of class as a very effective communication tool. This gets important information to the whole class, avoids many unnecessary mishaps, helps the class run more efficiently and prevents much frustration in the students.