18:17 10 December 2015
Three UK teachers from London, Devon, and the Vale of Glamorgan have made the final 50 in a competition to find the world's best teacher. The Global Teacher Prize, which was won by Nancie Atwell from the United States last year, offers the winner $1m (£670,000).
The three UK teachers are:
· Colin Hegarty, Preston Manor School, Wembley, Greater London
· Janet Hayward, Cadoxton Primary School, Barry, Vale of Glamorgan
· Sean Bellamy, Sands School, Ashburton, Devon
Colin Hegarty was last year's winner of the UK's Pearson Teaching Awards. He is known as a "maths superstar" for his work in school. He obtained his first class degree in maths at Oxford University. He took a £40,000 pay cut to become a teacher.
Janet Hayward, a primary school head teacher, was made an OBE for her services to education. She is committed to promoting the use of technology and is the chairwoman of the National Digital Learning Council in Wales.
Sean Bellamy runs an unconventional secondary school and focuses on the emotional intelligence and young people's mental health.