classes: lecturer. There should be a clear orientation in each practice lesson, i.e. when the practice is completed, it can be applied as a practical product. curriculum. There should be a clear orientation in each practice lesson, i.e. when the practice is completed, it can be applied as a practical product. facility. There should be a clear orientation in each practice lesson, i.e. when the practice is completed, it can be applied as a practical product. general. There should be a clear orientation in each practice lesson, i.e. when the practice is completed, it can be applied as a practical product.