Recently, people start to use container houses as a modular classroom in the education industry to catch up with the ever-increasing registered students. The standard size of each container unit is 5950*3000*2800(L*W*H), but it can be connected to each other to make a bigger room. The modular cabins can also be stacked up for two floors. Due to the modular design of containers, their flexible designs are very suitable for campus life. The portable school can be easily moved from one campus to another, and match with other construction in the campus at the same time. When there is a boost of students, or a reconstruction after calamity, container school is an ideal solution for seeking short term temporary school building. The following is our portable classroom design for one of our African client. Each modular classroom can accommodate 21 people. The students will move to a permanent school building after 4 years using.