classes:  lecturer. I think you should give more tests, maybe after or between each chapter, so that you can monitor the student's learning situation.  curriculum. I think you should give more tests, maybe after or between each chapter, so that you can monitor the student's learning situation.  facility. I think you should give more tests, maybe after or between each chapter, so that you can monitor the student's learning situation.  general. I think you should give more tests, maybe after or between each chapter, so that you can monitor the student's learning situation.