So teaching Chemistry and my lesson's are designed as "Bell to bell" lessons. 90 minutes (block schedule) meet every day a week. I generally do Warmup -> Discussion -> (any notes) -> Practice -> Check for understanding/Closure. Admin. has been observing (they didn't say anyone's class specifically) that bell-to-bell teaching is not really happening. They see students off-task, talking about something other than content, on their cellphones, etc. This happens in my room and if I catch them I politely ask them to get to work and I [mostly] get a positive response. I hear "well maybe your lessons aren't engaging enough" all the time, but I actively work to make them engaging--the kids are working on it, but they multitask like crazies! Anyone have any methods of cutting down on this? I've observed others at my school and seen classes that look almost exactly like mine and other that are extremely regimented (which is what I think admin. likes). That is not me. I'm relaxed. Regimented me would fail horribly. edit: I want to mention that I've seen some ideas, but they seem like they are more oriented towards small class sizes of about 20. I have one class of 17 that is just magnificent. I can easily keep them on task and they enjoy the discussion partly because the class is so small (they have told me this). Then I have classes of 32 which is harder to maintain if I want to maintain my sanity. One idea I saw had something like "teach 15 minutes only and call on ALL students during that time to hold them all accountable". Well...sure--call on all 30+ students each taking variable amounts of time to respond can really cut into it. Not to mention my high-achievers that would rather just get to work (and they do).