1, homework on the map refers to the practice of plotting the situation of both sides of the war on the military map according to the situation provided by the scene and the requirements put forward. Although the content of this operation method is rough, it is not as realistic as field operation and sand table operation, but it is not limited by weather, site and other conditions, and the map display area is wide, which can form a large-scale situation and let students see the overall situation; This method is simple, saves manpower and material resources, and is convenient to select various terrains for repeated research and training. Training courses can be large or small, which can improve students' ability to read and use pictures. It is a training method widely used by commanders and command organs at all levels.

2. Sand table combat refers to the practice of displaying the situation of both sides of the battle with chess on the scale terrain model according to the situation provided by the scenario and the requirements put forward. Although this operation method is not as vivid as field operation and close to actual combat, it is intuitive, three-dimensional and close to field operation, and is not limited by terrain, weather, seasons and other conditions. It is suitable for the training of commanders and command organs at all levels. More realistic than the map operation on the military map. However, the larger the scale of the operation, the smaller the scale of the sand table, and the more difficult it is to display the detailed terrain, which restricts the use of campaign commanders and their command organs.