Alzheimers health...grandma and soccer practice

Soccer practice for one of the kids is twice a week. Grandma has now started yelling at any kid she sees in her limited vision "kick the ball" Go ahead kick it!!! Kick that Ball!!! Any soccer balls around us she says its ours and pick it up. Fortunately we sit far enough away from the kids practicing they don't hear her or just don't acknowledge her yelling.
She has started yelling at one of my children just about anytime she opens her mouth and it doesn't matter what it is. Yesterday she yelled at my child "I am going over your head" not even I understood the statement or the referance.