Unpack the curtain dividers; there will be a rod, curtains, mounting brackets, anchors and screws inside the packaging.
Ask someone to lend you a hand. Extend the curtain rod to match the length of the room from one wall to the other, and attach the mounts to both ends.
Hold the curtain rod against the walls and mark the holes in the mounting brackets on the wall with a pencil.
Put the curtain rod onto the floor temporarily.
Select a drill bit that is just a bit smaller in diameter than the screws included with the curtain dividers.
Fit the bit into the drill and drill pilot holes into the wall where you made the pencil marks.
Put the anchors inside the pilot holes and tap flush with the wall using a rubber mallet.
Pull the mounting brackets off the ends of the rod. Hold the mounts in place, aligning the pilot holes in the walls with the holes in the rod mounts.
Drive screws through the mounting brackets into the pilot holes in the wall with a screw gun.
Hang the curtain on the rod, then hang the curtain divider on the mounts fastened to the wall to finish.