摘要 |
PURPOSE: A learning material for measuring a traverse and a measurement learning method using the same are provided to visually enlighten a traverse measuring concept by displaying the azimuth, the bearing, the latitude, and the departure. CONSTITUTION: A disk(1) includes a center pole(4) and a receiving groove(2'). An angle displaying part(2) displays angles and bearings in the range of 0 to 360 degrees. A circular gradation indicator(5) includes a first through holes inserted into the center pole of the disk. A plurality of graduated rulers(3) forms a first through hole at one side. The first though hole of the graduated rulers is inserted into the center pole of the disk. |