Outstanding – Exceptional, inspiring and expertly delivered; technically faultless.
Excellent – Highly educational and interesting, with professional delivery; maybe very minor technical faults.
Very Good – Educational and interesting, with accomplished delivery; minor acceptable technical faults.
Good – Some aspects of educational value, and acceptable delivery; minor technical faults.
Satisfactory – Content notstimulating, and uninspiring delivery; notable technical faults to remedy.
Poor – Little or no educational value and soporific; significant technical faults.