NON ADHD children understanding an ADHD mom?

I have a different situation:  My first two children (previous marraige) have grown up most of their life with their (ADHD) step mom (my wife).  as now entering adulthood, they are having the same kinds of frustrations with her that a typical non ADHD partner/spouse would have.  How can I help them understand what ADHD is like?  its the same kind of understanding an non ADHD spouse would get from this site....but this isnt a spouse, its a PARENT that has ADHD. Any ideas or resources that would better help them with their frustrations?