Economy National Education Day: From blackboards to digital screens: How technology is expanding the horizons of learning Updated : November 11, 2019 01:34 PM IST India has the largest population of children in the world with an estimated 242 million youngsters between 10 and 24 years. Various tools such as smartboards, LCD screens, videos, radio among others, make it sustainable for the teachers to deliver information more efficiently. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.