Because the captives have no stationary to study with, they subsisted by the boards which were handmade (they supplied the boards which were made by themselves and subsisted by them). These boards were made of a cardboard which was covered by a cloth. The captives smeared these clothes with oil, solved some scraped soap in it and covered this board with a plastic on which left the pen mark. When they lifted the plastic, the pen mark disappeared. They made one of them in a very big size so that the teacher stood to this board and taught. The learners and students also had made a little one for themselves to write their exercises on.