When I was studying in Mae La Refugee Camp, there were so many challenges about few resources. Our school do not have anything for the environment class, but only paper boxes and color pencils. There is no projector, no 3D printer, or any special things. However, our teacher was so creative, she built a small 3D national park from the plastics and paper box. She built so many things such as animals, houses, and forests out of paper boxes and used water bottles. It was really beautiful. She also taught us how to build those beautiful handmade arts by reusing and recycling the plastics and paper boxes. 

This method does not only help us to see the feature of the things in 3D shapes, but it also helps reducing the wastes such as plastic and paper boxes.