But if the student does not understand the teacher will uses a model that creates a 3D city model, the base model of the area where the problem occurred, so that in the end, the students can understand.
If students do not understand Teachers will be used to create a three-dimensional models, such as a city. Base model the location of the problem. So that the students can understand.
But if the students don't understand. The teacher will use the model created a three-dimensional, such as city model model base of places that problem. So finally, students can understand.