Close your eyes for a second or two and imagine what it would be like to attend school each day, to be taught under a tree, in a prefabricated building with no electricity or in a single classroom with 100 or more children in the same space?
Now imagine what it would be like to learn in this environment. There's little or no classroom furniture, you probably have to sit on the floor or in the dirt and balance your learning material on your legs.
Wouldn’t you find it difficult to concentrate on your lessons, never mind excel in such an environment?