Use green, yellow, and red colored cups for group work. When a table gets too loud, change the cup to yellow. If the table continues to be too loud, the cup gets changed to red; this means a loss of group time.
Magnetic Puzzles - stick a little magnet onto the back of each puzzle piece, then put together the puzzle on a cookie sheet! Great way to keep from losing puzzle pieces, easy clean-up, and great for car trips!