The map depicts the developments which took place in Zhabei High School over a 20-year period starting from 1990.
Overall, it can be seen that the high has been transforming remarkably with various facilities relocated and added.
Looking at the map of the high school in 1990, a canteen, a library and a large basketball court could be found on the left side of the entrance, while the opposite side was four classrooms separated. To the northeast, there was an area for gymnastics, followed by scientific research and boarding school.
As can be seen from the second picture, after two decades, the most highlighted change was the introduction of landscaping around the premises, creating an environmentally friendly area. Additionally, the school property was divided into 2 sections; to the left is the campus and to the right are the apartments together with shops. While the canteen and library remained unchanged, the classrooms were equipped with modern facilities, including interactive boards, computer projectors and a Wi-Fi zone outside. The size of the gym room shrunk to have a classroom located. Further development was the abolishment of a science laboratory to pave way for separate biology, chemistry, physics and industrial technology laboratories. In the north-eastern corner of the school, there was the area for rainwater tank and recycling, directly opposite the basketball court, which was narrowed half compared to itself in the past. 
The map depicts the developments which took place in  
Zhabei
 High  
School
 over a 20-year period starting from 1990. 
Overall
, it can be  
seen
 that the high has been transforming  
remarkably
 with various facilities relocated and  
added
.
Looking at the map of the high  
school
 in 1990, a canteen, a library and a large basketball court could  
be found
 on the  
left
 side of the entrance, while the opposite side was four classrooms separated. To the northeast, there was an area for gymnastics, followed by scientific research and boarding school.
As can be  
seen
 from the second picture, after two decades, the most highlighted  
change
 was the introduction of landscaping around the premises, creating an  
environmentally
 friendly area.  
Additionally
, the  
school
 property  
was divided
 into 2 sections; to the  
left
 is the campus and to the right are the apartments together with shops. While the canteen and library remained unchanged, the classrooms  
were equipped
 with modern facilities, including interactive boards, computer projectors and a Wi-Fi zone outside. The size of the gym room shrunk to have a classroom located.  
Further
 development was the abolishment of a science laboratory to pave way for separate biology, chemistry, physics and industrial technology laboratories. In the north-eastern corner of the  
school
, there was the area for rainwater tank and recycling,  
directly
 opposite the basketball court, which  
was narrowed
 half compared to itself in the past.