David Calle is one of the ten finalists in with a chance of winning the Global Teacher Prize worth $1 million on Sunday 19 March.

David, from Madrid, Spain, is the founder and creator of the Unicoos educational website. David faced a financial struggle to become a teacher and was lucky enough to be able to combine university study with a teaching job in a learning support academy.

Ten years ago, concerned about the lack of support for students outside school, he uploaded a maths video to YouTube which quickly caught on. He then began uploading maths, physics, and chemistry videos, as he knew that many families couldn’t afford an academy or private tutor for extra support. Now his Unicoos website videos have been viewed by more than 30 million students.

Come back to First News this Sunday, 19 March, at 4pm (GMT) to watch a very special announcement of the winner – it’ll be out of this world! You can read more about the winner in Issue 562 of First News, on sale Friday 24 March.

Watch videos about all the all ten finalists.

Watch what Prince Harry has to say about the Global Teacher Prize 2017 finalists.

Find out more about the Global Teacher Prize.

What do you think makes a great teacher? Tell us in the comments below!