| 摘要 |
PURPOSE: A blackboard for video teaching is provided to maximize the effect of video teaching by adjusting the height of a monitor to a desired state according to the condition of an instructor or student. CONSTITUTION: A frame body has a central frame(12) mounted on the center of a blackboard and side frames(14) mounted on both sides of the central frame to be separated from each other by their boundary. A monitor(20) is mounted on the central frame for performing various kinds of video teaching. A writing board(30) is mounted on the side frames to be located at both sides of the monitor and has a writing surface erasable by wiping. An elevating unit lifts and drops the central frame vertically with respect to the side frames for controlling the pitch of the monitor.
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