These posters are great for letting your students know your explicit expectations during each and every activity. I have included both a PDF file and an editable PowerPoint file, so you can choose what your own specific expectations are! The circles are the perfect size for those plain magnets you can buy. I found mine at Hobby Lobby, but they can be found at any craft store or even at Amazon! If you don't have the magnets, clothespins or clips could even be used and easily manipulated!