Im not having a go at teachers,come from a school background myself and attended parents evening and it was for 15 minute slots per child so It just went on and on all week.
The thing is Im not sure what seeing dds teacher for 5 minutes will accomplish. There isnt time to tell you anything!
I want to go and I want to know my dd is doing okay but I also know if there is a problem teacher will arrange a proper meeting etc.
Is it just to see their work? Couldnt they send the work home for the night with a form asking if you have any concerns and invite you to make an appointment if you have? Bet teachers would be happier.