 What do you deliver and improve upon education on a vast scale? India has a population of 1.4 billion people, 350 million of which are children, and whilst everyone agrees education is really important, there is huge variation in the quality of education that can be offered across the country. Simon Cross and a team of academics working with the Tata Institute of Social Sciences in Mumbai are researching how teacher training can be improved at scale by using digital technology in India and beyond. There are so many millions of teachers in India and delivering teacher professional development to them every year is a great challenge. So our research focus has been on how to use educational technology and learning approaches to better support teachers in improving their classroom practice and people outcomes. In particular we've been interested in using digital badges. And what is a digital badge if you explain to someone for the first time? A digital badge is essentially a graphic or a symbol which is hyperlinked to information which explains what the person did to earn that badge. Not only can we deploy them at scale, but it also means that teachers can collect and share them digitally as well. So there was an overwhelming positive response from teachers. Not only did they engage with the learning materials and with the assessment linked to the badges, but they took great pride in receiving the badges. They also showed great interest in us rolling this out more further across the state and we are already beginning to see signs of this being adopted by other regions. We all know how important education is to achieve different social and environmental goals such as UNESCO Sustainable Development Goal, but we don't often consider teacher training which is why this research is so important. If you would like to find out more about research projects or courses at the Open University, go to open.ac.uk