The gate (1) is located at 30 directions northwest of the teaching building150m. Mark this door on the map.

(2) The library is located at 30 northeast of the teaching building 100 meters, and marked on the map.

(3) The laboratory is located in the direction of (west), (south) and (15) of the teaching building, with a distance of 300 meters.

(4) The Science and Technology Building is in the direction of (south), (east) and (70) degrees of the teaching building, 200 meters away from the teaching building.