At the only place in their village where they could find a strong mobile internet signal - a windswept hill on the barren steppe - Ukrainian fifth-grader Mykola Dziuba and his friends have built makeshift tent to serve as a remote classroom.
"We sit here for around two or three hours, sometimes just for an hour," said Dziuba as the wind rattled the rickety structure. "When it got cold recently, it wasn't too great."
