if you think you can do it without shaking them around to much than do that. I am not sure what other teachers do since most classrooms have lots of windows so that would make it hard and not like you can wait till it is dark since the kids aren't in the class then. hmmmmmm So ya if you have to do that then it may be better to do them in 2 batches. You can ask on the other NR360 thread too they may have some ideas there.I have to take the eggs to the closet to candle I think. I have a huge walk-in closet where the kids hang their coats. The outlets are not near there, so I’ll have to bring the eggs back and forth. Was thinking of putting all of them in a clean carton, closing the incubator, candling with the kids (they can all fit in the space, it really is huge), and then carrying the carton back to return all the eggs. Is that too complicated? Otherwise I have to candle in the room, and there are lots of windows so it would be hard to block out light.