
I agree - although I would have them drop treats rather than throwing them at her to begin with, if that makes sense. The action of throwing - with the arm moving and the hand coming up and out - can be quite scary to reactive dogs.
I would try and keep things as confrontation-less as possible - so think about the layout of the house, doorways, kitchen etc and if you can avoid them walking towards her as this is threatening to a dog. Even if they can just walk in a slight arc it would help.
I would also suggest you have a look at BAT (behaviour adjustment training, from Grisha Stewart) - this can teach her that there are other options besides aggression (i.e. walking away) and can be very effective.