Christine Blower, NUT general secretary, told BBC Radio 4's Today programme it was "a little disappointing" Mr Gove had written to Ofqual "without having had this discussion with the profession".
She said: "There is a lot to commend A-levels, but there is no harm done in having a look at them again.
"What we don't want is to have proposals put to us on a take it or leave it basis."
More top news
Cloudy skies for many this Bank Holiday Sunday.
The brother of British holidaymaker Steven Cook who vanished in Crete 10 years ago has his family are "sure he's alive".
Neurologist and Author Dr. Oliver Sacks CBE who wrote popular case histories like “The Man Who Mistook His Wife for a Hat” has died aged 82.