How do you critique an opera?

Question: How do you critique an opera!?

i Have to go see the opera Suor Angelica tonight for school and i have to write a critique essay on it!. i has to be about the production!. like how it went and stuff!. and about the singing since this critique is for my chorus class!. so i really need help on wat to write about!.
thanx in advanceWww@QuestionHome@Com

Best Answer - Chosen by Asker:

Just take notes while you see it about what you noticed, and throw your opinion in on what went on (based on your notes)!. Be as detailed and descriptive as possible!Www@QuestionHome@Com

Are you trying to tell us that your teacher made an assignment without explaining how to do it!? I think you were not paying attention in class!. DocWww@QuestionHome@Com