Frustrated

     The past few weeks I have become frustrated due to scale checks during clinic.  I clean my patient's teeth then get an instructor to do a scale check, thinking I cleaned everything really good and that I don't have any errors.  The instructor then comes over and tells me the areas that I did miss.  Thats fine, I'm glad they do that so we can get the patient's teeth completely cleaned so they can heal well.  The thing that frustrates me is that after the instructor tells me the areas that I missed she just walks away.  Hello!  I missed those areas and need help cleaning them, I'm obviously not doing something right.  I understand that there are other people in clinic that also need the instructor but I would just appreciate it if the instructor would stay and help me with one tooth and then let me try to get the rest on my own.