During guided reading I want to listen to each child read, but I don't want them reading together (chorally.) Since we sit close together, it's hard for them not to "hear" each other. I've been using whisper phones to solve this problem. Each student uses a whisper phone as he/she reads. I can lean in and listen to each one and make anecdotal notes about how strategies are being used, etc. Plus the kids love them! I keep a container of antibacterial wipes handy for quick cleaning while groups switch.