I had the same problem last year with the 6th graders. I changed from flat
erasers to the pencil tip kind and whola- the problem stopped. Broken
pencils? Won't happen if you are circulating constantly around the room...and
I call home and make the kid replace a pencil if they break it, plus they get
to go to "think tank" and write out how to behave in the art room, treat
supplies, etc during their recess time.
Hope this helps
Christine from Binghamton