The student assembles the first tray.
text: Now, you should take the bigger box and slide it down the structure.
text: And the boxes are things on the right.
text: Uh. Please hold it the other way around.
text: You can slide it down the structure.
text: Please use the small black things to put in between this crew and the pipes.
text: This screw is from the other side from the outside.