Question

What is the tree room in An elementary school classroom in a slum

Answer 1

The creative and the young minds eager to grab as much as knowledge from the teacher.

Answer 2

Tree room of an elementary school classroom is dedicated to the students who sitting in the last benches, and dreaming something new or innovating with his own ideas.

You can find such descriptions the poetry where the characters dreaming their life through the trees from their classroom and they always sit in the last benches to spend their time in their own dream room or tree room.