The kindergarten is in a traditional Mongolian ger, with a thick quilted lining and a carpet on the floor. Children’s pictures are pinned to the wooden frame. Outside, it is raining, and heavy clouds blanket the hills. The ger is pitched in the middle of a wide, flat valley. Some children arrive on foot, with older brothers carrying them across a river. Others arrive with their parents on horseback, motorbike or tractor.