CONVEX MIRRORED BLACK BOARD CAPABLE OF ENABLING A TEACHER TO WATCH STUDENTS WHILE WRITING ON A BOARD

摘要

PURPOSE: A convex mirrored black board is provided to prevent teachers from looking back several times by having a convex mirrored black board.;CONSTITUTION: A convex mirrored blackboard includes a convex mirror. The convex mirrors are installed in both sides of the blackboard. The convex mirror helps the teacher to look whole class room without looking back. The convex mirror widens sight of the teacher and helps students to concentrate better.;COPYRIGHT KIPO 2012