I love each and every one of my students individually. They are great kids. I have 18 of them. They LOVE each other so much that ALL THEY DO IS TALK. I have tried rewarding individual tables by earning "tokens", individual student rewards, etc. etc. etc. Nothing is helping. They have the hardest time lining up to go anywhere. ALL THEY DO IS TALK to each other. During tests, etc. This is my 8th year teaching and I've always been able to manage their talking. This year i am having no luck. Any advice??? Thank you!