Teachers Sarah Troughton and Neil Hancox were the joint winners of this year's Blair Peach Award at conference on Monday.
The award - recognising the work of members who promote equality and diversity - is named after the past president of East London National Union of Teachers, who died during an anti-racist demonstration in Southall, London, on April 23 1979.
On the day of his death, Mr Peach was marching against the presence of the far-right National Front.
NUT leader Christine Blower said: "The NUT is proud of the work by so many of its members in promoting equality and diversity and the passion and commitment of Sarah Troughton and Neil Hancox exemplifies that.
"Their work in highlighting issues of disability, race and homophobia are examples to us all of how we can make a difference in our own communities and workplace."